Hi all again ! :)...
Obviously I didnt look hard enough !
I found the solution for exim to get rid of emails with malformed addresses
the following entered in config will do it !
headers_check_syntax
headers_sender_verify
sender_verify
receiver_verify
(Ironically, apologies for my spam mail below) ! :)...
Regards to all
Chris G.
-----Original Message-----
From: Chris Goh [
mailto:chris@platypus.net.au]
Sent: Tuesday, 23 October 2001 15:02
To: exim-users@???
Subject: [Exim] relay/addresses
Hi all,
In affort to combat open relaying and email abuse i've been looking into the
config of exim.
exim is already doing a good job with checking following.
rcpt to: <spamtest@???>
550 relaying to <spamtest@???> prohibited by administrator
rcpt to: <"spamtest@???">
501 <"spamtest@???">: recipient address must contain a domain
rcpt to: <spamtest@???@mydomain.com>
501 <spamtest@???@mydomain.com>: malformed address: @mydomain.com>
may not follow <spamtest@???
rcpt to: <spammer.com!spamtest>
501 <spammer.com!spamtest>: recipient address must contain a domain
rcpt to: <spamtest@???@[111.111.111.111]>
501 <spamtest@???@[111.111.111.111]>: malformed address:
@[111.111.111.111]> may not follow <spamtest@???>
however, exim still takes the following calls ......despite the fact that it
never sends them anyways.
rcpt to: <"spamtest@???>
250 <"spamtest@???> is syntactically correct
rcpt to: <spamtest%spammer.com@???>
250 <spamtest%spammer.com@???> is syntactically correct
rcpt to: <spammer.com!spamtest@???>
250 <spammer.com!spamtest@???> is syntactically correct
rcpt to: <"spamtest@???>
250 <"spamtest@???> is syntactically correct
rcpt to: <spamtest%spammer.com@???>
250 <spamtest%spammer.com@???> is syntactically correct
rcpt to: <spammer.com!spamtest@???>
250 <spammer.com!spamtest@???> is syntactically correct
(i am safe to assume that our mail server is pretty secure with regard to
open relaying.)
however, can someone suggest the sort of filters i may implement to the
config to deny it to begin with ? and if such filters are common place, to
where i may find it ? (a have already looked :)...)....or even a ppoint in
the right direction is appreciated.
best regards
chris g
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