Preferences
Accounts
Add account
Name: Own name
Email address: mail to be set up completely
Password: mail password
Continue
Incoming mail server
Account type: POP
Description: (optional)
Incoming mail server: mail.yourdomain.com
Username: full email
Password: email password
Continue
Outgoing mail server
Description: (the same as previously introduced)
Outgoing mail server: mail.yourdomain.com
Select Use only this server
Select Use authentication
Username: full email
Password: email password
Continue
Outgoing email security
We select password in authentication
We chose to use ssl
Continue
Account summary
Create
Advanced Tab
Port of departure: 993
Account information tab
Outgoing server (SMTP): edit server list (mail.yourdomain.com)
Advanced Tab
Use custom port: 465
Ok