How to block a sender in Outlook and stop unwanted email

What does blocking a sender in Outlook actually mean?

Blocking a sender in Outlook is the one-click way to say I never want this person's mail in my inbox again. You pick a message from them, choose Block, and from that moment every future email that address sends is automatically routed to your Junk Email folder instead of landing in front of you. You stop seeing their mail, you stop getting notifications about it, and you do nothing by hand each time — Outlook handles it on every future message the moment it arrives.

It is worth being precise about what blocking does and does not do, because the word block implies something stronger than what happens. Blocking does not bounce the message back, does not stop the sender from sending, and does not delete their mail outright. What it does is add the sender to your Blocked Senders list, which tells Outlook to treat everything from that address as junk. The mail still arrives; it just arrives quietly, in the Junk Email folder, where you can ignore it or empty it whenever you like. So block is best understood as a permanent, sender-specific junk rule rather than a wall that turns the sender away at the door.

Most people reach for block when an address has crossed a line — a relentless marketer that ignores the unsubscribe link, a spammer, an ex, a recruiter who will not take a hint. It is the bluntest of Outlook's tools for an unwanted sender, and bluntness is the point: one action, applied forever, no per-message decisions. For a single persistent address, nothing is faster.

The trouble is that block is often confused with three neighboring tools that look similar but solve different problems. Marking a message as Junk moves it and nudges Outlook's filter, but is gentler than a hard block. Reporting phishing or junk sends a signal to Microsoft about a dangerous or unwanted message, aimed at scams and bulk junk rather than a known sender. A rule is a custom instruction that can act on senders, subjects, keywords, or whole conditions, with a far wider menu of actions than block offers. Choosing the wrong one is the most common reason people end up frustrated — blocking a newsletter they could have unsubscribed from, or expecting block to stop a phishing campaign that rotates addresses every day. We sort out which tool fits which situation below.

There is an extra wrinkle in Outlook that most other mail apps lack: two desktop programs both call themselves Outlook, plus a web version, and the steps differ between them. The new Outlook for Windows (the redesigned app that shares its engine with Outlook on the web) handles blocking one way; classic Outlook (the older, ribbon-heavy desktop program) handles it another, through its Junk Email Options dialog. Outlook on the web behaves like the new app. This guide covers all of them, clearly labeled, so you can follow the path that matches the Outlook open on your screen.

Across this guide you will learn the fastest way to block a sender in new Outlook and on the web, the equivalent steps in classic Outlook, how to block an entire domain (Outlook can do this natively, unlike some rivals), how to manage your Blocked and Safe Senders lists, when to report phishing or junk instead, how blocking works on Android and iPhone, and a clear comparison of block versus rule versus report. We finish with troubleshooting for when mail keeps arriving even after you blocked the sender, and an honest look at where Outlook's per-account, address-by-address blocking stops being enough.

One framing to carry through all of it: Outlook's block is account-bound and address-bound. It lives inside one mailbox and acts on one exact address (or one domain) at a time. That scope explains almost every limitation you will run into — why a spammer who rotates addresses slips past a single block, why blocking in your personal account does nothing for the same sender hitting your work account, and why managing the list still matters. Knowing the scope up front means the rest of this guide makes sense instead of surprising you.

How do you block a sender in new Outlook and on the web?

The fastest way to block someone in the new Outlook for Windows or on the web is straight from one of their emails. You do not go into Settings first; you start from the message itself, and Outlook handles the address for you. The new desktop app and the web version share the same modern interface, so the steps are effectively identical — whether you use Outlook.com, a Microsoft 365 mailbox in a browser, or the redesigned Windows app, this is your path.

There are two routes to the same result. The quickest is to right-click the message in your list and choose Block. The other is to open the message and use the more-actions menu (the three dots) at the top of the reading pane. Here is the right-click route, which most people find first.

1. 1

   Open new Outlook or Outlook on the web

   Launch the new Outlook for Windows, or sign in to your mailbox at outlook.com or your organization's Outlook web address. Make sure you are in the account the unwanted mail is arriving in, since blocking is per-account.

2. 2

   Find a message from the sender you want to block

   In your inbox message list, locate any email from the address you want gone. It does not matter which message — a single one is enough, because the sender of that email is what gets blocked.

3. 3

   Right-click the message

   Right-click (or press and hold on a touchscreen) the message in the list to open the context menu. If you prefer, open the message and click the three-dot more-actions menu at the top of the reading pane instead — both lead to the same Block option.

4. 4

   Choose Block, then Block sender

   Hover over Block in the menu and choose Block sender (it may read Block followed by the address). Outlook adds the sender to your Blocked Senders list right away.

5. 5

   Confirm if prompted

   If Outlook asks you to confirm, select OK or Block. The message you blocked from is moved to Junk Email, and every future email from that exact address is routed to Junk Email automatically from now on.

If you prefer to work from a settings screen — say, to add an address you do not have a message from — new Outlook and the web both expose the blocked list directly. Select Settings (the gear icon, top right), go to Mail, and choose Junk email. Under Blocked senders and domains, type the address, select Add, and choose Save. The same screen holds your Blocked domains and Safe senders, both covered further down.

A few details are worth knowing. Blocking acts on the exact From address, not the display name. If a sender emails you from news@acme.com today and offers@acme.com tomorrow, blocking the first does nothing to the second — different addresses, even though the name on them is identical. This is why a single block struggles against spammers who rotate addresses, and why blocking the whole domain (below) is often the better move for a persistent pest. Blocking also does not move the messages already in your inbox; it only governs future mail. To clear the old ones too, delete them yourself after you block.

The new Outlook and web experience is the simplest of the three surfaces for this task: a right-click and a menu choice, plus a settings screen that holds your blocked addresses, blocked domains, and safe senders in one place. If you are on classic Outlook, the next section walks through the older dialog, which reaches the same destination by a slightly longer road.

How do you block a sender in classic Outlook?

Classic Outlook — the long-standing desktop program with the ribbon along the top, part of Microsoft 365 and older Office installations — handles blocking through its Junk Email feature rather than a simple Block command. The result is the same as in new Outlook: the sender goes onto your Blocked Senders list and their future mail is filtered into Junk Email. But the path runs through the Junk button on the Home tab, with a fuller Junk E-mail Options dialog behind it that gives you more control than the new app exposes.

The quickest route is straight from a message, like the modern app.

1. 1

   Select the message in your inbox

   Open classic Outlook and click once on any message from the sender you want to block so it is selected (you do not need to open it fully). Make sure you are in the correct mailbox if you have more than one account.

2. 2

   Open the Junk menu

   On the Home tab of the ribbon, click Junk. If you prefer, you can right-click the message in the list and hover over Junk in the context menu instead — both menus offer the same options.

3. 3

   Choose Block Sender

   Select Block Sender. Classic Outlook adds the sender's address to your Blocked Senders list and moves the current message to the Junk Email folder. From now on, mail from that exact address is filtered to Junk Email.

That handles a single sender in two clicks. But classic Outlook's real power lives in the Junk E-mail Options dialog, where you can add addresses and domains by hand, review everything you have blocked, and tune how aggressive the junk filter is. Use it to block an address you do not have a message from, block a whole domain, or audit your lists.

1. 1

   Open Junk E-mail Options

   On the Home tab, click Junk and choose Junk E-mail Options at the bottom of the menu. A dialog box opens with tabs across the top: Options, Safe Senders, Safe Recipients, Blocked Senders, and International.

2. 2

   Go to the Blocked Senders tab

   Click the Blocked Senders tab. This is the complete list of every address and domain you have blocked in classic Outlook — the place to review, add, edit, or remove blocks.

3. 3

   Click Add and enter an address or domain

   Click Add, then type an email address (someone@example.com) or a whole domain (@example.com, or just example.com) that you want to block. Click OK to add it to the list.

4. 4

   Apply and save

   Click Apply, then OK to close the dialog. Future mail matching anything on your Blocked Senders list is automatically delivered to the Junk Email folder.

Two things make the classic dialog worth knowing even if new Outlook is your day-to-day. First, the Options tab sets how aggressive the junk filter is overall — from No Automatic Filtering up to Safe Lists Only, where only mail from your Safe Senders reaches the inbox and everything else is junk. That last setting is a heavy hammer, but it is the closest Outlook offers to an allow-list-only inbox. Second, the dialog keeps Safe Senders and Safe Recipients on their own tabs, so trusted contacts and blocked pests are managed side by side — handy when a block has gone too far and you need to whitelist someone.

One caveat specific to classic Outlook with a Microsoft 365 or Exchange account: junk filtering is partly handled on the server, and your Blocked and Safe Senders lists sync up so they apply across your devices. That is good — block once, blocked everywhere you read that account — but changes can take a few minutes to propagate, and the server's own filtering sits in front of yours. If a blocked sender's mail occasionally still appears, that server-versus-client interaction is often why; the troubleshooting section below covers what to do.

How do you block an entire domain in Outlook?

Blocking a domain is where Outlook quietly beats some rivals. If a sender peppers you from constantly changing addresses on the same domain — sales@acme.com, news@acme.com, no-reply@acme.com — blocking each one is a losing game. Outlook lets you block the whole domain in one entry, so every address ending in it is filtered to Junk Email at once, including new ones you have never seen. No clumsy workaround required; it is built into the same Blocked Senders list you have already met.

In new Outlook and on the web, you do this from the Junk email settings screen.

1. 1

   Open Settings, Mail, Junk email

   In new Outlook or on the web, select Settings (the gear icon), choose Mail, and then open Junk email. You will see sections for Blocked senders and domains, Blocked domains, and Safe senders.

2. 2

   Find Blocked senders and domains

   Locate the Blocked senders and domains section. This single field accepts both individual addresses and whole domains, so you can block all of acme.com here rather than chasing each address.

3. 3

   Enter the domain and add it

   Type the domain name — for example acme.com (some versions accept @acme.com) — and select Add. Every address ending in that domain is now treated as a blocked sender.

4. 4

   Save the change

   Choose Save. From this point, all mail from any address on that domain is automatically routed to your Junk Email folder, including addresses on the domain you have never received mail from before.

In classic Outlook the same is done from the Junk E-mail Options dialog covered above: open the Blocked Senders tab, click Add, and type the domain — for example @acme.com — rather than a full address. Outlook treats that as a domain-wide block and filters every address on it to Junk Email. The dialog accepts both formats on one list, so you can mix individual addresses and whole domains freely.

Blocking a domain is far more powerful than blocking one address, and for a persistent commercial pest it is usually the right move. A single entry catches every sub-address — sales, marketing, no-reply, support — and keeps catching new ones the sender invents, which a per-address block never could. If a company mails you from a fresh address each week but always on the same domain, stop playing whack-a-mole and block the domain once.

Two cautions, though. First, a domain block is broad by design: if a domain you blocked also sends something you genuinely want — an order confirmation, a password reset — that mail goes to Junk too. Be sure the whole domain is unwanted before you block it, and prefer the specific address when only part of a domain is the problem. Second, do not block large shared domains like gmail.com, outlook.com, or yahoo.com. Millions of legitimate people send from those, so a domain block would bury enormous amounts of wanted mail to stop one sender. For a person on a shared provider, block their individual address, not the provider's domain.

How do you manage your blocked and safe senders lists?

Blocking is fully reversible, and Outlook keeps everything you have blocked in one place so you can review it, unblock people, or correct a mistake. Just as important is the flip side: the Safe Senders list, which guarantees that mail from people and domains you trust is never treated as junk, no matter what the filter thinks. Together the two lists let you draw a clear line — these senders are always junk, these are always welcome — and leave everything in between to Outlook's automatic filter.

In new Outlook and on the web, both lists live on the same Settings, Mail, Junk email screen. To unblock a sender, find them under Blocked senders and domains (or Blocked domains), select the trash icon next to the entry, and choose Save — their future mail returns to your inbox. To add a trusted sender, scroll to Safe senders and domains, type the address or domain, select Add, and Save. Here is the unblock flow in full.

1. 1

   Open Settings, Mail, Junk email

   In new Outlook or on the web, select Settings, choose Mail, and open Junk email. Your blocked addresses, blocked domains, and safe senders are all listed here.

2. 2

   Find the sender or domain to unblock

   Scroll the Blocked senders and domains list (and Blocked domains, if you blocked a whole domain) to locate the entry you want to remove. This view is the complete record of who you have blocked, so it is worth a periodic read.

3. 3

   Remove the entry

   Select the delete or trash icon beside the address or domain. It disappears from the list immediately, which lifts the block.

4. 4

   Save the change

   Choose Save. From this moment, future mail from that sender or domain arrives in your inbox normally again instead of going to Junk Email.

In classic Outlook, the same management happens in the Junk E-mail Options dialog. On the Blocked Senders tab, select an entry and click Remove (or Edit to fix a typo), then Apply and OK. On the Safe Senders tab, click Add to trust an address or domain. Two checkboxes there are worth turning on: Also trust e-mail from my Contacts, which whitelists your whole address book, and Automatically add people I e-mail to the Safe Senders List, which trusts anyone you start a conversation with. Both dramatically cut false positives, where wanted mail lands in Junk.

The Safe Senders list is the cure for over-blocking, and it is worth understanding because it overrides the junk filter. An address or domain on it is never treated as junk, regardless of the content or what the filter would otherwise decide. So if a newsletter you actually want keeps getting filtered to Junk, do not fight it message by message — add the sender to Safe Senders once and it stays in your inbox for good. The same applies to a whole trusted domain, like your employer's, so internal mail is never misfiled.

It is worth opening both lists every few months and reading down them. Blocks are easy to add in a moment of irritation and easy to forget, and an old block can quietly send mail you now want straight to Junk — a recruiter who is now relevant, a store you have warmed back up to, a person you have reconciled with. The lists are the only place this history is visible, so treating them as something to maintain rather than set-and-forget keeps them from working against you. A good audit asks two questions of each entry: do I still want this blocked, and is there anyone on my safe list I no longer trust?

Should you report phishing or junk instead of blocking?

Block, Report junk, and Report phishing sit close together in Outlook and look almost interchangeable, but they do different jobs. Block is personal and surgical: it affects only your account and only the address (or domain) you blocked, sending its future mail to Junk Email. Reporting, by contrast, is a signal to Microsoft — you are telling its systems that this kind of mail is unwanted or dangerous, which helps Microsoft catch similar messages for you and, in aggregate, for everyone.

Report junk is the right tool for unsolicited bulk mail — the marketing you never signed up for, the spam that slipped past the filter. When you report a message as junk, Outlook moves it to Junk Email and, in most versions, also adds the sender to your Blocked Senders list, so reporting junk often blocks the sender as a side effect while feeding Microsoft's filter. For everyday junk from an address you do not recognize, Report junk is frequently a better first move than a plain block, because it both removes the message and improves the filter.

Report phishing is for a message that is not merely unwanted but dangerous — anything trying to trick you into handing over a password, a card number, login credentials, or money, often by impersonating a bank, a colleague, or a service you use. Here is the distinction most people miss: reporting a message as phishing reports the sender to Microsoft but does not block them. A reported phishing sender is not added to your Blocked Senders list and is not stopped from emailing you again. Reporting phishing alerts Microsoft's security teams to a live scam; it is not a personal block. If you want that address kept out of your inbox too, block it separately.

So how do these stack up against block? Block is best for a known, persistent, legitimate-but-unwanted sender — a real company or person whose mail you never want, where there is no fraud and unsubscribing has not worked. Report junk is best for unsolicited bulk mail you want Outlook to learn from, and it usually blocks the sender for you as a bonus. Report phishing is best for anything malicious — but pair it with a block if you also want that address gone, because reporting alone will not stop it.

The most important pairing to internalize is phishing versus block. Blocking a scammer feels decisive, but on its own it is the weaker response, because phishers send from throwaway addresses they discard after a single campaign — blocking one does nothing about the next, while reporting it as phishing feeds Microsoft the pattern. The right move for a suspected scam is to report it as phishing first, then block the address too if you want it personally barred. Never reply to, click a link in, or open an attachment from a suspected phishing email. For mere annoyance from a legitimate sender, the calculus flips, and a personal block or Report junk is exactly right.

How do you block a sender in Outlook on Android and iPhone?

The Outlook mobile app on Android and iPhone can report and, in most current versions, block senders, though the controls are tucked into a menu and the wording shifts between updates. When blocking is available, the result is the same as on desktop — the sender's future mail goes to Junk Email across your devices, because the block lives on the server tied to your account, not on the phone. Here is the typical flow.

1. 1

   Open the Outlook app and the sender's email

   Launch the Outlook app on your Android phone or iPhone, make sure you are in the right account, and open any message from the sender you want to block.

2. 2

   Tap the three-dot more menu

   Tap the three dots (more actions) in the upper-right corner of the open message to bring up its action menu.

3. 3

   Tap Report Junk, then choose your option

   Tap Report Junk. The app offers Junk (for spam), Phishing (for scams and malicious links), and Block Sender. Choose Block Sender to add the address to your Blocked Senders list, or Junk to move the message and report it.

4. 4

   Confirm the action

   Confirm if prompted. A blocked sender's future mail is routed to Junk Email; reporting junk moves the message and trains the filter; reporting phishing alerts Microsoft without blocking the sender.

Reporting features in the mobile app require a reasonably recent version — broadly, Outlook for iOS and Android from late-2024 builds onward — so if you do not see Report Junk or Block Sender at all, update the app from the App Store or Google Play first. Some users on older versions, or with certain account types, find Block Sender simply is not in the menu; that is a known limitation, not something you are doing wrong, and the fix is to update or fall back to the web.

Where mobile falls short is managing the lists and blocking domains. The Outlook app has no full Blocked senders and domains settings screen like the web and desktop apps — no in-app place to view everyone you have blocked, unblock from a list, or add a whole domain. You can block or report an individual sender from a message, but the complete blocked list, the safe senders list, and domain blocking are reachable only from new Outlook, classic Outlook, or Outlook on the web.

If you need to manage your lists from a phone with no computer handy, the workaround is to open outlook.com in your phone's browser and, from the browser menu, request the desktop site. Outlook's full settings, including Junk email with its blocked and safe lists, then become reachable. The layout is built for a wide screen, so the controls are cramped — it works in a pinch, but most people prefer to wait until they are back at a keyboard. For the common case of blocking one sender, though, the app handles it natively when up to date, and you never need the desktop site.

Block vs rule vs report: which should you use?

Block is rarely the only right answer, and choosing it by reflex is how people end up blocking newsletters they could have unsubscribed from, or expecting block to stop a scam it was never built to handle. Outlook gives you several tools for unwanted mail — block, rules, and reporting — that overlap just enough to be confused and differ just enough to matter. Here is how they compare across the things that decide which to use.

The clearest way to choose is to ask one question: is this a legitimate sender you once said yes to, a single pest you want silenced, or something genuinely dangerous? If it is a real newsletter, store, or service you signed up for — even accidentally — unsubscribe is almost always the right move. It is cleaner than block because it stops the mail at the source instead of diverting it to a Junk folder you then have to ignore. A blocked newsletter keeps arriving (into Junk); an unsubscribed one simply stops. For mail you legitimately opted into, unsubscribe beats block almost every time.

Block earns its place when unsubscribe is not available or not honored. A spammer offers no working link; a relentless marketer ignores the one they do offer; an individual — an ex, a difficult contact, a recruiter who will not stop — has no list to leave. In those cases there is nothing to unsubscribe from, and block is correct: one address or domain, sent to Junk, done. The key is that block is for a specific sender or domain, not a category. If you want to handle all mail with this word in the subject or everything that is not from my team, that is a rule's job, not block's.

Rules are the answer whenever the target is broader, the condition more nuanced, or the action smarter than send to Junk. A rule can route mail to a folder, flag it, mark it read, forward it, or delete it, based on the sender, subject, keywords, who it was sent to, and more — none of which is blocking's job. The cost is that rules are more involved to set up and live mostly on desktop and web. For anything beyond barring a single sender or domain, a rule is the more capable tool, and our companion guide on Outlook rules covers the full mechanics. Reporting, finally, talks to Microsoft rather than just your own mailbox — Report junk to train the filter on bulk spam, Report phishing to flag a scam.

In practice, a healthy Outlook inbox uses all of them: unsubscribe to shed the legitimate lists you have outgrown, block to shut down persistent senders and domains that have no list to leave, rules to sort and route everything else, and reporting to feed Microsoft's filters on genuine spam and scams. Reaching for the right one each time keeps the inbox calm without losing mail you actually wanted. The failure mode is using one tool for every job — blocking what you should unsubscribe from, or expecting a block to stop a phishing campaign that changes addresses daily.

Why are you still getting email after blocking the sender?

It is genuinely common to block someone and keep seeing their mail, and it almost always comes down to a handful of predictable causes rather than an Outlook failure. Blocking is literal and address-specific, so when it seems not to work, the mail arriving is usually not coming from the exact address on your Blocked Senders list. Here are the culprits, from most common to least, and how to fix each.

• They are emailing from a different address. A single block stops one exact address. A sender who mails from news@acme.com and offers@acme.com needs both blocked — or, far better, block the whole domain to catch every address at once. Check the real From address in the header, since it often differs from the display name.
• It is a different sender on the same topic. Marketing and spam come from many addresses across many domains, so blocking one does nothing about the others. For a whole category, a rule matching a keyword, or reporting the messages as junk so Microsoft's filter learns, beats blocking addresses one by one.
• You blocked the display name in your head, but block follows the address. If a spammer keeps the same friendly name while rotating addresses, every block you add catches nothing new. This is the most common why is blocking not working case, and blocking the domain is usually the fix.
• The mail is going to Junk, not the inbox — and that is the block working. Blocked senders' mail is not deleted; it is delivered to Junk Email. If you are seeing it there labeled as blocked, the block is doing its job. To never see it, empty Junk periodically or set Outlook to delete junk on arrival.
• Old mail is still in your inbox. Block does not remove messages that arrived before you blocked the sender. If their old emails are still there, that is expected — search their address and delete the backlog manually; only future mail is filtered.
• Server filtering is overriding your list. With a Microsoft 365 or Exchange account, junk handling is split between server and app, and changes take a few minutes to sync. A sender on your Safe Senders list (or in your Contacts, if you trust contacts) reaches the inbox even if you later block them — safe-listing wins. Remove them from Safe Senders if you truly want them blocked.
• It is phishing from throwaway addresses. Scammers discard addresses after each campaign, so blocking one is meaningless against the next. Report phishing instead — that signals Microsoft's filters in a way blocking a dead address never will.

If you work through that list and mail still arrives, the fastest diagnostic is to read the actual From address on the offending message rather than the display name — open it and look at the real address shown next to or beneath the sender's name. Nine times out of ten, the address there is not the one on your Blocked Senders list, which explains why the block is not catching it: the mail is coming from somewhere your list was never pointed at. The fix is to block that specific new address too, or — far more often the right answer — to block the whole domain so every variant is caught at once.

There is a deeper reason this keeps happening, and it is why a different approach can help. Outlook's block matches a literal address or domain on a list — it has no notion that fifteen different domains, or twenty addresses sending the identical pushy pitch, are all the same unwanted thing. So you add block after block, chasing each new sender as it appears, and the mail keeps finding a way in until you patch the next hole. The work never finishes, because a literal list match cannot recognize a sender it has not been told about. That maintenance treadmill is exactly the gap a smarter, meaning-aware approach is built to close.

How does AI Emaily handle unwanted senders across every account?

Outlook's block button and Junk E-mail Options are fine tools for a single persistent address or domain, and everything above is worth knowing. But they show their age in three places, and those gaps are what AI Emaily is built to close. AI Emaily is an AI-native email client that works across every account you connect — Outlook, Gmail, Yahoo, iCloud, any IMAP mailbox — so your protection from unwanted mail applies everywhere at once, instead of being trapped inside one provider's junk settings page. If a spammer hits both your Outlook account and your work address on another provider, you stop blocking the same sender twice in two incompatible places.

The first gap is that Outlook's block is literal and list-bound. It matches an exact address or domain and has no idea that a dozen domains, or twenty addresses sending the same pushy pitch, are all the same unwanted thing. AI Emaily layers AI spam and phishing protection on top of your accounts that recognizes the pattern, not just the string — it catches the variations a per-address or per-domain block lets through, and flags phishing by what it is trying to do rather than waiting for you to have seen that exact address before. You stop playing whack-a-mole.

The second gap is that Outlook gives you a Junk folder and a blocked list, but little say in what reaches you the first time. AI Emaily adds an AI Screener — a gate for first-time senders, so mail from someone you have never corresponded with waits for your nod before it reaches your inbox. Combined with simple allow and block lists you control, unwanted senders are handled before they land, not cleaned up after. The screener is the proactive version of blocking: instead of reacting to mail you did not want, you decide who gets through up front.

The third gap is fragmentation. Outlook's blocking lives in Outlook; it does nothing for your other mailboxes, and full list management is desktop-and-web only. AI Emaily's allow and block lists, screener, and AI protection span every connected account and work from any device — no this has to be done on a computer, no maintaining separate defenses per inbox. One place, every account, every device.

• AI spam and phishing protection that recognizes patterns and intent — catching the address and domain variants and scams a literal blocked-senders list misses.
• An AI Screener that holds mail from first-time senders for your approval, so unknown senders are vetted before they ever reach the inbox.
• Allow and block lists you control, applied across every account you connect — Outlook, Gmail, Yahoo, iCloud, any IMAP — not just one provider.
• Manage all of it from any device, including your phone, instead of being locked to the desktop or web for list and domain management.

AI Emaily has a free plan at $0 to start protecting your inbox across the accounts you connect, and a Pro plan at $17.99 per month billed annually for the full AI spam and phishing protection and screener. If Outlook's block has taken you as far as a single provider's junk settings page can — and you are tired of chasing rotating addresses, managing blocks one inbox at a time, and reacting to mail after it arrives — it is a natural next step. You can create an account at app.aiemaily.com/signup.

Putting your Outlook blocking to work

Blocking a sender in Outlook is a right-click away in new Outlook and on the web — choose Block, Block sender — and a Junk, Block Sender away on the Home tab in classic Outlook. From there, their future mail goes quietly to Junk Email, they are never told, and you can undo it anytime from Settings, Mail, Junk email (or the Junk E-mail Options dialog in classic). For a single persistent address, nothing is faster, and now you know what it does and does not do — it filters the future, it does not bounce mail, and it follows the exact address rather than the sender.

The bigger skill is choosing the right tool. Unsubscribe from the legitimate lists you have outgrown rather than blocking them into Junk. Block the individual addresses that have no list to leave, and block the whole domain when a sender rotates addresses on it. Build a rule when you need to sort, route, or act on conditions broader than one sender. And report phishing — then block separately if you want the address barred — for anything trying to steal a password, money, or data, because reporting alone does not block the sender.

Keep two facts in mind and most blocking confusion disappears: block acts on the exact address or domain on your list, so mail that keeps arriving is almost always coming from a different one; and a Safe Senders entry overrides any block, so a sender you safe-listed reaches the inbox even after you block them. Check the real From address when something slips through, prefer a domain block over chasing addresses, audit your lists every few months, and clean up the backlog by hand since block only governs the future.

And when literal, list-based, single-account blocking stops being enough — when you want protection that recognizes a spammer across every address and domain they use, a screener that vets unknown senders before they land, and one set of defenses that covers every account from any device — that is the line where Outlook's block ends and AI Emaily begins. Set your blocks up well today; you will know when you have outgrown them.