 | | | redhat and sendmail smtp blank from | redhat and sendmail smtp blank from 2005-06-20 - By Rushan Sobar
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Dear All,
1st of all sorry if my english not that much...
In the last few days i notice in the mail log file than some e-mail with blank
from as follow
Jun 20 15:04:28 mec sendmail[9386]: j5KC4RWf009386: from=<>, size=0, class=0,
nrcpts=0, proto=SMTP, daemon=MTA, relay=smtp.global-e.nl [212.241.50.202]
Jun 20 15:04:32 mec sendmail[9388]: j5KC4VWf009388: <esperanzanavarro@(protected)
.jo>... User unknown
Jun 20 15:04:32 mec sendmail[9388]: j5KC4VWf009388: from=<>, size=0, class=0,
nrcpts=0, proto=SMTP, daemon=MTA, relay=smtp-8.smtp.ucla.edu [169.232.47.137]
can anyone advice what can be done to block or reject e-mails from blank from ??
and is there anyway that the one can scan a redhat box and get the users list
on that machine to start sending junk mails to them? is there anyway to block
this if it exist?
Regards
Rush
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