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Apple Mail & iCloud

Mail on macOS, iPhone and iPad — and iCloud Mail itself.

Apple Mail on a Mac showing the Primary, Transactions, Updates, and Promotions category tabs — illustrating how to turn off Mail Categories on Mac and revert to a single flat list view
Apple Mail & iCloud

How to Turn Off Mail Categories on Mac (and Keep Them)

How to turn off Mail Categories on Mac and switch to a plain list view — step-by-step for macOS Sequoia, troubleshooting, and platform differences.

Nafiul HasanNafiul Hasan
Illustration showing the Apple Mail rebuild mailbox process — a local message cache being cleared and re-downloaded from a mail server
Apple Mail & iCloud

How to Rebuild a Mailbox in Apple Mail (And When to)

How to rebuild a mailbox in Apple Mail: discard the local cache and re-download from the server. Safe for IMAP; risky for local-only mailboxes.

Nafiul HasanNafiul Hasan
Diagnostic diagram for Apple Mail rules not working on Mac, showing the client-side rule engine and common failure points including Mail closed, rule order conflicts, and macOS updates
Apple Mail & iCloud

Apple Mail Rules Not Working on Mac: Why and How to Fix It

Apple Mail rules stop working when Mail is closed, rule order conflicts, or a macOS update resets them. Here is how to diagnose and fix each cause.

Nafiul HasanNafiul Hasan
Apple Mail search not working on Mac — diagram showing the three failure modes: wrong scope, messages not downloaded locally, and stale Spotlight index
Apple Mail & iCloud

Apple Mail Search Not Working on Mac: How to Re-index

Apple Mail search not working on Mac? Three causes — wrong scope, messages not downloaded, stale Spotlight index — with step-by-step fixes for each.

Nafiul HasanNafiul Hasan
Illustration of Apple Mail on Mac failing to sync new messages, with a red exclamation mark on an account and a Connection Doctor panel showing a failed IMAP route
Apple Mail & iCloud

Apple Mail Not Receiving Emails on Mac: How to Fix Sync

Apple Mail not receiving emails on Mac usually means the account went offline, credentials expired, or the IMAP connection stalled. Here is how to fix each.

Nafiul HasanNafiul Hasan
iPhone showing the Undo Send Delay setting in Apple Mail with options for Off, 10, 20, and 30 seconds
Apple Mail & iCloud

How to Change the Undo Send Delay in iPhone Mail

How to change the Undo Send delay in iPhone Mail from 10 to 30 seconds, turn it off, and fix it when the button disappears. Requires iOS 16.

Nafiul HasanNafiul Hasan
iPhone inbox showing Mail app category tabs — Primary, Transactions, Updates, Promotions — with the three-dot menu open and List View highlighted
Apple Mail & iCloud

How to Turn Off Mail Categories on iPhone (iOS 26)

How to turn off mail categories on iPhone and get back to a chronological inbox in iOS 26, plus what causes the badge count to show wrong numbers.

Nafiul HasanNafiul Hasan
iPhone Mail inbox in the Transactions category showing emails collapsed into grouped sender rows, illustrating the Group by Sender behavior introduced in iOS 18.2
Apple Mail & iCloud

How to Stop iPhone Mail Grouping Emails by Sender

iPhone Mail groups emails from the same sender into a single collapsed row in iOS 18.2 and later. Here is how to stop it and show every message separately.

Nafiul HasanNafiul Hasan
Diagram showing the five DNS records required to connect a custom email domain to iCloud Mail with iCloud Plus
Apple Mail & iCloud

How to Set Up a Custom Email Domain with iCloud+

Set up a custom email domain with iCloud+: the DNS records Apple needs, platform steps, family sharing limits, and what the feature can't do.

Nafiul HasanNafiul Hasan
iCloud Mail rules interface at icloud.com showing condition and action dropdowns for setting up server-side email filtering rules that run even when no device is on
Apple Mail & iCloud

How to Set Up iCloud Mail Rules (Server-Side Filtering)

iCloud Mail rules run on Apple's servers and apply everywhere, even when your Mac and iPhone are off. Create them at icloud.com or in iOS 17+ Settings.

Nafiul HasanNafiul Hasan
Diagram showing iCloud Mail IMAP and SMTP server settings with port numbers and encryption requirements for connecting to third-party email clients
Apple Mail & iCloud

iCloud IMAP and SMTP Settings for Third-Party Email Apps

iCloud IMAP and SMTP server settings for third-party email apps — correct hostnames, ports, SSL, and the username rule that trips up most users.

Nafiul HasanNafiul Hasan
iCloud Mail app-specific password generator on account.apple.com — setup guide for connecting iCloud to third-party email clients
Apple Mail & iCloud

How to Create an App-Specific Password for iCloud Mail

How to create an iCloud Mail app-specific password, troubleshoot common rejections, and revoke access without changing your Apple Account password.

Nafiul HasanNafiul Hasan

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