iCloud Email Settings for All Platforms

[andyrose187]

iCloud Mail SMTP Settings for Outgoing Mail Server
Server name: smtp.mail.me.com.
SSL required: Yes.
Port: 587.
SMTP authentication required: Yes.
Username: Type your full iCloud email address, including your name and @icloud.com. ...
Password: Use the password you set up for the incoming mail server.

[nancy]

iCloud Mail uses the IMAP and SMTP standards supported by most modern email apps. iCloud does not support POP. If you set up an account using iCloud System Preferences or macOS Mail in 10.7. 4 or later, you won't see these settings because they're automatically configured

[johnnrobertt]

Access your Me.com (Apple iCloud) account via IMAP with these setup instructions. ... to your Me.com (Apple iCloud) account, so you can connect to your email from mobile devices and desktop email clients. ... It's built with love for Linux.

[Ursula]

iCloud Mail SMTP Settings for Outgoing Mail Server
Server name: smtp.mail.me.com.
SSL required: Yes.
Port: 587.
SMTP authentication required: Yes.
Username: Type your full iCloud email address, including your name and @icloud.com. ...
Password: Use the password you set up for the incoming mail server