Launch Design Manager, choose File > User Settings
Enter in the following settings...
iCloud email
Gmail
SMTP Server: smtp.gmail.com
Port: 465
The user name is your email address with the @gmail.com.
Check off the box for TLS/SSL, do not check SPA.
***Gmail requires security settings to be changed to be used in Design Manager, please follow this link here.
Yahoo
SMTP Server: smtp.mail.yahoo.com
Port: 25
AOL
SMTP Server: smtp.aol.com
Port: 587
Hotmail
SMTP Server: smtp.live.com
Port: 25
Verizon
SMTP Server: outgoing.verizon.net
Port: 587
Mac
SMTP Server: smtp.mac.com
Port: 25
Comcast
SMTP Server: smtp.comcast.net
Port: 110
Test the settings, if applicable, and then choose OK. Your email should be configured.
Your email account should receive a carbon copy of the message, as well as appear in the sent items folder.