What is the outgoing mail server for icloud

The outgoing mail server for iCloud is smtp.mail.me.com. This is the default SMTP server used by iCloud to send emails from your iPhone, iPad, or Mac.

Here are the settings you can use to configure your email client to send emails using iCloud's outgoing mail server:

Note that you may need to enable "Use SSL" or "Use TLS" depending on your email client and the version of iOS or macOS you're using.