See I have used gmail smtp i.e. smtp.gmail.com
and then I used sasl_passwd file to store
smtp.gmail.com username

assword
now in from address of all sent emails I get the username that is mentioned as above in sasl_passwd file
I want to change it because if I don't change it all my three different users have same from address in all the emails sent.
can any body please suggest any ideas on resolving this problem