RE: [cobalt-users] Closing port 23

["Tom Nelson" <tom@xxxxxxxxxxxxx>]

I guess I thought it may be a way of preventing spammers from using my mail
server to send mail.
I have all the updates, POPb4SMTP, firewall, portsentry, chkrootkit,
fcheck....
Yet it still looks like someone is able to connect somehow to spam...
I get lots of bounce back messages.... And how are they able to do the
following...
And how can I stop it???

Jan  8 12:38:46 nala sendmail[7164]: h08Ici107164:
from=<D-8-738411-7993461-2-38900-US1-0B84E88E@xxxxxxxx>, size=14678,
class=0, nrcpts=1, msgid=<I-3-738411-7993461-2-38900-US1-C26FB0A6@xxxxxxxx>,
proto=ESMTP, daemon=MTA, relay=memailout21.messagereach.com
[205.183.255.230]
Jan  8 12:38:48 nala sendmail[7171]: h08Ici107164: to=dtk27@xxxxxxx,
delay=00:00:03, xdelay=00:00:02, mailer=esmtp, pri=44385,
relay=mailin-04.mx.aol.com. [64.12.137.152], dsn=2.0.0, stat=Sent (OK)

Thank you,
Tom Nelson


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> Okay, then is there some way of not allowing telnet connections to
> port 25 yet still have a mail server capable of sending mail out
> to the world?

Nope.

Why does it matter anyway??

- --
Bruce Timberlake

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