Marek Kozlowski:
> :-)
>
> >> Some users forward their incoming mail to some external mail servers.
> >> Unfortunately AFAIK with no action taken it may result in breaking the
> >> SPF. The solution for this problem I know is rewriting addresses with
> >> SRS (postsrsd). Unfortunately postsrsd uses the same settings as
> >> canonicals do which in my case is inadvisable because I want canonicals
> >> to operate independently of SRS. A few days ago I sent a post regarding
> >> this problem.
> >
> > What is the problem? Perhaps you are unaware that Postfix canonical
> > mapping is recursive, and that it can apply multiple mappings.
>
> I've wrote it on 20.11. Again:
>
> The recommended configuration of postsrsd is quite simple and as follows
> (main.cf):
>
> sender_canonical_maps = tcp:localhost:10001
> sender_canonical_classes = envelope_sender
> recipient_canonical_maps = tcp:localhost:10002
> recipient_canonical_classes= envelope_recipient,header_recipient
>
> which in my case is:
>
> sender_canonical_maps = unionmap:{ldap:/etc/postfix/ldap-canonical.cf,
> ldap:/etc/postfix/ldap-canonical2.cf, tcp:127.0.0.1:10001}
By design, unionmap can produce multiple results separated by comma.
That would be wrong.
Why not:
sender_canonical_maps = ldap:/etc/postfix/ldap-canonical.cf,
ldap:/etc/postfix/ldap-canonical2.cf. tcp:127.0.0.1:10001
That produces one result, and it still ensures that each
mapping will be tried.
> sender_canonical_classes = envelope_sender
> recipient_canonical_maps = tcp:127.0.0.1:10002
> recipient_canonical_classes = envelope_recipient, header_recipient
>
> due to some necessary address rewriting based on some LDAP attributes
> (postsrsd daemon works of 10001 and 10002 ports). For envelope addresses
> as well as the `To:' field everything is fine. The problem concerns the
> `From:' field:
Looks like you need to use SRS to rewrite envelopes, and LDAP to
rewrite some headers.
Can you use smtp_generic_maps for the LDAP stuff?
Wietse
