The Best Way Check Mail and Send Mail from other accounts in Gmail

This is the master key that will help you set-up your Gmail accounts so that you can send mail as another account you own that is a Gmail or Google Apps account.

Also, below is the server info for being able to check mail from other google accounts using POP3

Incoming Mail (IMAP) Server - Requires SSLimap.gmail.com
Port: 993
Requires SSL:Yes

Incoming Mail (POP3) Server - Requires SSL (check mail from other accounts - Max=5):pop.gmail.com
Use SSL: Yes
Port: 995

Outgoing Mail (SMTP) Server - Requires TLS or SSL (send mail as another account)smtp.gmail.com
Port: 465 or 587
Requires SSL: Yes
Requires authentication: Yes
Use same settings as incoming mail server

Full Name or Display Name: [your name]
Account Name or User Name: your full Gmail address (user...@gmail.com). Google Apps users, please enter user...@your_domain.com
Email address: your full Gmail address (user...@gmail.com) Google Apps users, please enter user...@your_domain.com
Password: your Gmail password or App password