Refer to your email app's documentation for information about how to use these settings. iCloud Mail uses the IMAP and SMTP standards supported by most modern email apps. iCloud does not support POP.
IMAP information for the incoming mail server
Server name: imap.mail.me.com
SSL Required: Yes If you receive errors when using SSL, try using TLS instead.
Port: 993
Username: The name part of your iCloud email address (for example, emilyparker, not emilyparker@icloud.com)
Password: Your iCloud password
SMTP information for the outgoing mail server
Server name: smtp.mail.me.com
SSL Required: Yes If you receive errors when using SSL, try using TLS or STARTTLS instead.
Port: 587
SMTP Authentication Required: Yes
Username: Your full iCloud email address (for example, emilyparker@icloud.com, not emilyparker)