On 2016-11-18 21:18, MRob wrote:

> I am looking at a system where SpamAssassin is called out from the 
> delivery agent. I know there will be a difference here in terms of the 
> envelope information but I'm not familiar enough to know the pitfalls of 
> this versus calling SA from the postfix content_filter.
> 
> Specifically, I believe it's recommended to call SA in context of 
> receive_override_options=no_address_mappings but this wouldn't be the 
> case when we are in the delivery agent I think. What are the effects of 
> this?

I do a similar thing, but with Exim.

I preserve the envelope information by configuring Exim to insert
Return-Path and X-Envelope-To headers.

Any way you can do this with Postfix is probably quite specific to that
MTA.

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