So a few times now I've been caught out by clients receiving mail sent from the development server because I didn't sanitize the db. So, as an extra safe option, I'd like to ensure that all mail sent from my dev machine is either rejected based on domain or forwarded to myself.
I found a few questions that do a little of what I require;
Postfix on development server, allow mail to be sent to only one domain - This looks good and is what I have implemented so far, but the comment on the first answer is correct. Mail sent through Sendmail does not seem to use this setting.
postfix: catch outgoing mail and redirect - THis looked ok, but updating the transport did not do squat for me.
I also looked at address rewriting http://www.postfix.org/ADDRESS_REWRITING_README.html and read this blog post http://rene.bz/redirect-all-outgoing-email-single-account-postfix/
I am testing this by calling sendmail on the command line with the -t param like so;
sendmail -t < mail
where the contents of 'mail' are
Date: Tue Oct 11 11:25:22 2011 To: email@example.com Subject: test From: firstname.lastname@example.org test
I have been changing the address to be my gmail address and the example.com address. I'm wanting all mail to go to another (work) domain.
So far, I have seen no restrictions come into effect.
/etc/postfix/transport looks like this;
example.com : .example.com : * :discard
I have added these lines to main.cf
smtpd_recipient_restrictions = hash:/etc/postfix/my_access, reject transport_maps = hash:/etc/postfix/transport
Please also note I am using the Postfix bundled with MAMP and have been editing main.cf through MAMP - File > Edit Template > main.cf