How do I make postfix send emails from user@mydomain instead of root@hostname? Even after installing and entering my domain when it asked, it's still being sent with the hostname and not the domain I provided. In my main.cf file
myorigin = /etc/mailname
and /etc/mailname contains:
gateblogs.com
which is my domain.
I have managed to fix my problem temporarily by changing my hostname to my domain name. However, how can I change who the email is from; currently mail is shown from root I want it to be something else.
Best Answer
Postfix itself does not "set" the from address for an mail (as long has you haven't really tweaked the postfix configuration).
The from address header of an e-mail is set by the mail client which is asking postfix to deliver the mail (Postfix is a MTA).
Hence you are looking at the wrong place - as far as I understand your question.
You mentioned that you are using the
mailcommand to test your configuration. This neat little command is - by default - using the systems user name under which the command gets executed. In your case this seems to be userroot. Try executingmailas a different user and you'll see the from part changed.And since the command
maildoes - by default - not append the domain part to the "from" header of the mail it hands over to postfix, postfix is appending themyoriginpart automatically toroot.Though
mailis not limiting you to not use some other "from" e-mail header. You can read about on the www or the manual page ofmail. Also consider usingsendmail.Please note that postfix is a beast when it comes to configurability. You may accomplish almost everything you want postfix to do if you really understand its architecture and configuration files.
But since you are asking a quite 'newbee-ish' question you may not yet want to go down that road...