[pfx] Re: bounce management

2023-08-07 Thread Viktor Dukhovni via Postfix-users
On Mon, Aug 07, 2023 at 03:19:59PM -0400, Alex wrote: > > The only plausible solution on your end is to not queue mail for this > > domain, but rather proxy it through to the destination, with the > > response to "." coming from the final downstream systems. This may be > > possible with: > > > >

[pfx] Re: bounce management

2023-08-07 Thread Wietse Venema via Postfix-users
Alex via Postfix-users: > Hi, > > > > > We're only doing basic spam protection for them, > > > > What is the nature of the "basic spam protection"? Can it be done > > pre-queue? > > > > Yes, most likely, I would think. It's a basic spamassassin setup with a few > rules looking for specific patt

[pfx] Re: bounce management

2023-08-07 Thread Alex via Postfix-users
Hi, > > We're only doing basic spam protection for them, > > What is the nature of the "basic spam protection"? Can it be done > pre-queue? > Yes, most likely, I would think. It's a basic spamassassin setup with a few rules looking for specific patterns, as well as some RBL network checks. The

[pfx] Re: bounce management

2023-08-07 Thread Viktor Dukhovni via Postfix-users
On Mon, Aug 07, 2023 at 11:24:30AM -0400, Alex via Postfix-users wrote: > We're only doing basic spam protection for them, What is the nature of the "basic spam protection"? Can it be done pre-queue? The only plausible solution on your end is to not queue mail for this domain, but rather proxy

[pfx] bounce management

2023-08-07 Thread Alex via Postfix-users
Hi, I have a postfix-3.7.3 system on fedora37 and we're routing mail for a business using an Ironport device at their border. Instead of accepting all messages from us as their MX, there are some messages that it has determined are spam or otherwise undeliverable, which are resulting in them bounci