RE: [exim] Regexp for catching "prefixed" Message-ID: fields…

Hello,

> > Do you realize that `!senders = :' passes bounces (and spam) without
> > checking?
>
> My understanding was that it would not check messages to postmaster@ .
>

If you say `to', than you should obviously use `local_parts' (not
`senders') condition (remove the unneeded):

!local_parts = postmaster : operator : noc : ncc

And,

!senders = : postmaster@*

is different from

!senders = postmaster@*

An empty string before colon (:) causes the empty senders to be matched,
too, as far as I know...