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sendmail log reports (may be forged)

Posted on 1999-01-05
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Last Modified: 2012-05-04
in my logs i get the following :

from=<mikea@cas.co.za>,
size=1139, class=0, pri=31139, nrcpts=1, msgid=<01BE38C8.85027CE0@MIKE_A.cas>, proto=SMTP, relay=MIKE_A.cas [200.1.1.142] (may be forged)
Jan  5 16:31:26 linux01 sendmail[15583]: QAA15581: to=<pdb@tissoft.co.uk>, ctlad
dr=<mikea@cas.co.za> (547/547), delay=00:00:01, xdelay=00:00:01, mailer=rel
ay, relay=inetgway.cashbank. [200.1.1.248], stat=Sent (OK)

The mail does get deliverd, but it seems to me that there is
a problem since it gets relayed back to the user , why ?
and also get the mesg (may be forged) , my guess is that the
PC host name is different from the email user name ,
how do i fix this without having to rename user names ?
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Question by:crestty
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irp earned 50 total points
ID: 1588043
This is when the address you are coming from reverse looks up (in DNS) to a different address to that which you claim to be coming from. This should not affect delivery, if you are having problems with delivery this may be a different problem
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Expert Comment

by:oitgroup
ID: 22093679
This ia a typical reply.  An answer without a solution!  Solution One is to have your ISP setup rDNS.  Solution Two is to disable the reverse DNS lookup in sendmail.  For many of us, we are interested in disabling this feature.  I understand it is an antispam feature but I want to disable it anyway.

Be a real tech & tell us how to disable the rDNS lookup!

Oh! I forgot.  PLEASE

Sorry mom,
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