sendmail change sender

[scrsadmin]

I'm new to unix and need a way where i can change not only the domain name but also the user name mail is coming from.
For example i have a user of user1 and when i send mail logged on as user1 it says it came from user1@domain1.com
I have figured out how to change the domain1.com to someother.com by using masquerade but i am still seeing user1@someother.com. I want to be able to also change it so that when user1 sends mail it appears as if it is other@someother.com.
This is HPUX 11i

 

[Chacalinc]

what is your mail server? sendmail? postfix? another one?

Chacal, Inc.

 

[yai]

I suppose you use sendmail, so you need to setup a user database:
- in /etc/mail create a file called userdb
- entries in userdb have the following form (for root):
root:mailname user_name
- execute the following command:
makemap btree /etc/mail/userdb.db < /etc/mail/userdb
- uncomment the following line in /etc/mail/sendmail.cf:
O UserDatabaseSpec=/etc/mail/userdb.db
- restart sendmail:
/sbin/init.d/sendmail stop
/sbin/init.d/sendmail start

Hope that helps.

 

[scrsadmin]

Thanks swolf. That worked for the email address but i am also trying to remove the display name. For example when i send the mail user1@domain1.com it now come back with other@someother.com as i wanted but it also has a display name in front like this: host1 user1 other@someother.com. How do i get ride of the host1 and user1 part?

Thanks again

Yes we are using sendmail

 

[yai]

Hi,
i advise you to have a look into the sendmail bible (O'Reilly "Sendmail").
I never did what you want to do, so i start guessing: you might have to experiment with the F=i flag in the delivery agent to have the sender-envelope rewritten, and with the F=k flag to have the recipient headers rewritten.
What i forgot: when you have a user:mailname entry in your userdb for outgoing mails, you, of course, need a matching user:maildrop entry for incoming mails. They should always occur in pairs like
root:maildrop sysadmin@somwhere.com
syadmin:mailname root
But be aware:
"The UserDatabaseSpec option is not safe. If specified from the command line, it may cause sendmail to relinquish its root privilege" as the sendmail bible says.
Good luck,
swolf