Postfix/Altermime vs. Google Apps

May 2, 2008 3:43 PM

E-mail disclaimers: Postfix/Altermime setup works great except when used as an SMTP outbound gateway for Google Apps it strips the HTML version of the disclaimer.

So I have finally got Postfix running the way I'd like. I'm using Altermime to automatically attach a disclaimer to the footer of every e-mail sent through it.

Altermime includes a plaintext and an html version of the disclaimer.

Whenever I send an e-mail through Postfix using a mail client (such as Outlook, etc.) the disclaimer works perfectly. It includes the plaintext version and if you view the message in html it includes the html version.

However, when I set up my Google Apps for Domains system to use the Postfix server as the "Outbound Gateway" it somehow causes the html version of the disclaimer to be stripped from the message. So the recipient gets the disclaimer in plaintext view, but if they view it in html there is no disclaimer whatsoever.

I can't seem to figure out where why how this is happening?!@?!

posted by doomtop to computers & internet (1 comment total)

Noticed a difference in the MIME headers, maybe this has something to do with it?

When a send the message via desktop mail client it uses "Content-Transfer-Encoding: quoted-printable" and this is the message that works properly.

However, when relaying via Google Apps it is using "Content-Transfer-Encoding: 7bit" with "Content-Disposition: inline" and this is the message that doesn't display any of the disclaimer stuff in the text/html version.
posted by doomtop at 7:04 AM on May 5