Looking to set up iCloud email for sending in your favorite email program? Struggling with the SMTP server details? Find here the correct iCloud Mail SMTP server and port settings ⤓ to use for outgoing mail in any email client.
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These Are the iCloud Mail SMTP Server Settings
To configure an email program to send email using an iCloud email address (or custom domain set up with iCloud) using the iCloud Mail SMTP servers, use these settings:
| Name | Value |
|---|---|
| iCloud Mail SMTP server | |
| iCloud Mail IMAP port (SSL/TLS) | |
| STARTTLS security | yes (if available) |
| TLS security | yes (if STARTTLS is not available) |
| SSL security | yes (if neither STARTTLS nor TLS security are available) |
| Username | Your full iCloud email address (including the domain, e.g. "@me.com" or a custom domain) |
| Password | An iCloud application password |
| Authentication | Normal (plain-text) authentication |
On the receiving end: These Are the IMAP Settings for iCloud
These Are the SMTP Server Settings for iCloud Mail: FAQ
My email program does not allow ‘@’ in the username; are there alternatives?
No.
You need to use the full email address as the username for iCloud Mail IMAP including the ‘@’ sign and the domain.
(Possible workarounds like replacing @ with % or possibly the URL-encoded %40 do, alas, not work either)
Can I use port 25 for iCloud SMTP if port 587 is blocked on my device?
No.
iCloud Mail SMTP requires a secure connection to port 587. The SMTP server will not listen or accept mail on any other port.
If port 587 is blocked for you, you can try an SMTP proxy server that connects to iCloud through port 587 and serves your computer on port 25, 465 or 2025.
Do make sure you still maintain secure connections throughout (using STARTTLS).
Do I use a different SMTP server with a custom iCloud Mail domain?
No.
If you have set up a custom domain to use with iCloud Mail, you still use the standard iCloud Mail SMTP server for sending mail.
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(First published August 2020, last updated July 2026)