Changing 'Return_path' header

[Freemansweb]

I am running Linux, Postfix, and Cyrus imapd. Using SquirrelMail, or a mail client outbound mail contains the 'Return_path XXX@XXX.com', and the address is correct. The problem is that I am running a Wap script for wireless web email, and it accesses the mail for reading correctly and will send mail, but only to a domain that is served by the host machine. The script uses imap for sending mail and the 'Return_path

http://wwwrun.linux.local'

is output, so I can't send mail to external domains. Changing the server name directive in Cyrus creates all sorts of problems, so for the moment that's out. I'd like to map the

http://wwwrun.linux.local

to a valid email address for outbound mail. I'd appreciate any ideas.

Thanks

 

[Freemansweb]

To answer my own question, I entered the following in my sender_canonical file.

http://wwwrun@linux.local

XXX@XXX.com

This changes the 'Return_path

http://wwwrun@linux.local'

to 'Return_path XXX@XXX.com' and external domains accept the mail.

Next question, sending mail via command line.
There seems to be a -u option to change the user name from the logged user to another user. The syntax might be:
'mail webmaster@xxx.com -u different-user'.
After entering the above, I have 'Subject:' displayed but I can't get any farther.

Any Ideas!

Thanks

 

[pupu]

printf "Subject: $SUBJECT\n\n$TEXXXXXT\n.\n" | mail ....