Re: is possible modify the source address based on the subject?
> Is possible rewrite the sender address on a send mail when the subject
> have some special expression?
Your best options involve using software outside of Postfix, because
"change message property X based on the content of some other message
property Y" is not built into Postfix.
- Have your updates sent a local mailing list (you may have to
change your subscription, or use a Procmail rule). The mailing
list manager will replace the sender address with the list sender
- Maybe some Procmail rule can do all this. I don't use Procmail.
- Use a MILTER (milter implementations exist for Perl, Python, C,
and other languages). This can replace any property of an email
message: sender, recipient, header, body, based on arbitrary
criteria (i.e. code that you write).