Dnia 19.12.2022 o godz. 11:00:38 Yanko Hernández Álvarez pisze:
> 
> The problem is, when I send an email, it delivers two copies to
> seccopies@mydomain.example as seen in the logs, not one copy as
> expected.
[...]
> Any idea of how I can fix it?

Bear in mind that when you use a post-queue content filter, *two* delivery
cycles are made per each email (before filter and after filter). During each
delivery a copy is sent to always_bcc. That's why you get two copies.

The best method (although maybe not simplest, in terms of coding) to fix
this is to replace after-queue filtering with before-queue filtering, ie.
you should change your filter script into a milter. With milters, there will
be only one delivery cycle per message.
-- 
Regards,
   Jaroslaw Rafa
   r...@rafa.eu.org
--
"In a million years, when kids go to school, they're gonna know: once there
was a Hushpuppy, and she lived with her daddy in the Bathtub."

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