Re: Restrict incoming E-Mail at different levels
- On 1/23/2013 9:00 AM, rsmits-l wrote:
> Hello,These two are pretty easy using smtpd_restriction_classes. Define a
> We have a 'challenge' to make something work. I hope someone can
> guide me in the right direction. The following has to take place :
> We have a postfix mailserver which uses relay and virtual files for
> incoming and outgoing E-Mail traffic. We must be able to accept a
> new incoming relay from google-apps for an address rewrite and
> outgoing. But we want to make sure the incoming E-Mail from
> google-apps is from google, so we want to make some restrictions :
> 1. The incoming relay is from Google (IP address check)
> 2. From address is : ***@... (example)
class that checks for your restricted sender address, then use
check_client_access to check for the required client, else reject.
> 3. Custom X header in the E-Mail.This is unclear.
Do you want to add a custom header under particular circumstances?
Maybe that can be part of your restriction class with a PREPEND action.
Do you want to insure that a particular header exists? Postfix
can't do that; you'll need a content inspection filter/proxy/milter
such as SpamAssassin.
-- Noel Jones