Richard Raether via Postfix-users:
> Should I take out thee always_bcc in main.cf? Would this solution also 
> allow everything else to be BCC'd? Allsoo what would the line be if 
> "lists" were not in the domain name. I'm not familliar with the syntax.

Use always_bcc if you want to copy all email messages.

Use recipient_bcc_maps (and/or sender_bcc_maps) if you do want to
copy selectively based on the recipient (and/or sender).

I don't know what you need to exclude, so you need to adapt the
example, or you need to provide *in direct email to me* the domain
name(s) and/or email addresses that need to be excluded.

        Wietse

> Excuse. my ignorance,
> 
> Richard
> 
> On 3/21/24 8:54 AM, Wietse Venema via Postfix-users wrote:
> > Richard Raether via Postfix-users:
> >> We have an auditor account where all incoming and outgoing mail is BCC'd
> >> to, to retain for compliance reasons. However, since mailman retains its
> >> own archives, and we have a mailman on a separate server with a separate
> >> domain, is there a way to tell postfix DO bcc everything EXCEPT DON'T
> >> bcc anything from this particular domain? BTW, the other machine uses
> >> our mail server as a relay, which might make a difference.
> > It is not possible with always_bcc (as the name suggests, it does
> > make any distinction).
> >
> > It is possible if you use sender_bcc_maps and/or reciopient_bcc_maps.
> >
> > Example for recipient_bcc_maps, to exclude BCC copies for recipients
> > that match anyth...@lists.example.com:
> >
> > /etc/postfix/main.cf:
> >      recipient_bcc_maps = pcre:/etc/postfix/recipient_bcc
> >
> > /etc/postfix/recipient_bcc:
> >      # DO NOT indent text between the IF and ENDIF lines!
> >      IF !/@lists\.example\.com$/
> >      /./  ...auditor...
> >      ENDIF
> >     
> >     Wietse
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