Postfix: sending mail from multiple domains

scgtrp · 07-20-2009, 07:17 PM

I'm running a server with two sites which both need to be able to send emails. Currently I have Postfix set up to send email via Google Apps. This works fine, but Google's servers ignore the From: address I specify and substitute the one I logged in with. Is there a way to make Postfix log into Google Apps with a different username based on what site the email is coming from? The server does not recieve any mail itself; Google recieves it and we have it set to forward it to the appropriate person's real email address. I'm only worried about sending mail.

(Postfix is not a requirement here, so if there's another mailer that can do this better, I'm open to ideas. However, sending email directly from the server isn't an option as it's a residential IP address and blocked by most of the big email providers.)

Berhanie · 07-20-2009, 09:57 PM

You can use login credentials based on the envelope From: address, as explained here.

scgtrp · 07-20-2009, 11:19 PM

Thanks! That works when I use it from the command line, like this:

Code:

echo 'Test email #1240' |sendmail -f noreply@mydomain.com myemail@gmail.com

But it seems PHP doesn't pass -f to sendmail. sendmail seems to ignore that address when deciding how to authenticate, so I get this in my mail.log:

Quote:

Jul 20 10:58:58 farfalle postfix/smtp[9455]: 195A329CD67: to=<myemail@gmail.com>, relay=smtp.gmail.com[209.85.133.111]:587, delay=45, delays=44/0/0.42/0.02, dsn=5.5.1, status=bounced (host smtp.gmail.com[209.85.133.111] said: 530-5.5.1 Authentication Required. Learn more at 530 5.5.1 http://mail.google.com/support/bin/a...y?answer=14257 c37sm1004877ana.2 (in reply to MAIL FROM command))

PHP's mail() function does provide a way to pass it myself, but is there a way to make it ALWAYS use -f based on which site it's serving? I ask because I really don't want to repatch Drupal every time I update it.

maas187 · 07-20-2009, 11:37 PM

Quote:

Originally Posted by scgtrp

Thanks! That works when I use it from the command line, like this:

Code:

echo 'Test email #1240' |sendmail -f noreply@mydomain.com myemail@gmail.com

But it seems PHP doesn't pass -f to sendmail. sendmail seems to ignore that address when deciding how to authenticate, so I get this in my mail.log:

PHP's mail() function does provide a way to pass it myself, but is there a way to make it ALWAYS use -f based on which site it's serving? I ask because I really don't want to repatch Drupal every time I update it.

well try mail . instead of sendmail ,,

the last time i used Postfix i had to disable sendmail .

service sendmail stop ; chkconfig sendmail off

and you use mail command for postfix . hope this works .

Regards,
MaaS

Berhanie · 07-20-2009, 11:57 PM

There's a mail.force_extra_parameters paramter in php.ini:

Code:

; Force the addition of the specified parameters to be passed as extra parameters
; to the sendmail binary. These parameters will always replace the value of
; the 5th parameter to mail(), even in safe mode.
;mail.force_extra_parameters =

Unfortunately, according to this,
you can't override it in an apache config (e.g. per site).

Berhanie · 07-20-2009, 11:58 PM

please ignore. posted twice by accident.

scgtrp · 07-21-2009, 11:49 AM

Quote:

Originally Posted by Berhanie

There's a mail.force_extra_parameters paramter in php.ini:

Code:

; Force the addition of the specified parameters to be passed as extra parameters
; to the sendmail binary. These parameters will always replace the value of
; the 5th parameter to mail(), even in safe mode.
;mail.force_extra_parameters =

Unfortunately, according to this,
you can't override it in an apache config (e.g. per site).

I found that too. Didn't think of setting it per site, but if it wouldn't have worked anyway I feel no stupider. :-)

Edit: There's also sendmail_from but it's Windows-only. Where do these arbitrary restrictions come from?