Qmail Support Forum

admin · Site Admin Joined: 21 Jun 2005 Posts: 209

>>> I would like to selectively restrict mail for 'domain literal'
>>> recipient addresses. E.g. allow mail to user@[10.x.y.z] while
>>> rejecting messages for all other user@[ip.ad.dr.ess].

Hi,

FYI, the solution I came up with (thanks Wietse for the pointer to
regexp_table):

in main.cf:

transport_maps =
dbm:/etc/postfix/transport,regexp:/etc/postfix/transport.regexp

and in /etc/postfix/transport.regexp:

/\[10\..*\..*\..*\]/ :
/\[.*\..*\..*\..*\]/ error:domain literals not allowed

I must admit that I heavily rely on the address syntax checking of
Postfix (e.g. illegal addresses like user@[314.270.1.2] and
user@[a.b.c.d] are rejected by the Postfix address verification
machinery) so I could stick with the rude form shown above.

/rolf