You can use your iCloud email account on devices like phones and  computers to connect with the native email app.

Use these settings to set up the incoming mail server information for your iCloud Mail account:

Inbound Servers:
Type Server Address Port
POP Server Not supported NA
IMAP Server (SSL) imap.mail.me.com 993
Outbound Servers:
Type Server Address Port
SMTP Server (SSL) smtp.mail.me.com  587