[vPostMaster] When does always_bcc occur?

[Sean Reifschneider]

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Craig Isdahl wrote:
> I know this is more a postfix question than vpostmaster but I wasn't sure
> where in the vpostmaster process the always_bcc (main.cf) is executed.

It's implemented after the message is received via SMTP, so after the
SMTP-time checks like SPF, envelope checks, or greylisting, but before the
transport which does the delivery to the destination which is where
SpamAssassin and ClamAV checks are done (because they need access to the
message itself, not just the envelope).

> always_bcc and I've noticed it appears those messages are also run through the
> same spam/virus tests as the original message.  It seems wasteful to check the
> same message twice.

The only way to bypass the checks on the always_bcc destination, which by
the way are only the transport-time checks, would be to disable the
anti-virus checks on the destination account.  There isn't really a way for
it to whitelist the always_bcc.

Sean
- --
Sean Reifschneider, Member of Technical Staff <jafo at tummy.com>
tummy.com, ltd. - Linux Consulting since 1995: Ask me about High Availability
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