how to send mail by external account

[ohm_g7]

If I want to send mail by external account.
I mean receiver can see external account in "sent by :".

example I have user@domain1.com -----> main
user@domain2.com------> external account
Now I send mail using user@domain2.com but receiver see user@domain1.com
in "sent by" ,How I do for receiver see user@domain2.com in "sent by"?

thank you for answer.

[phoenix]

Go to the user Preferences/Accounts/Add Persona and set the details in there. You could also find this information by searching the forums.