On Jan 17, 2006, at 11:35 AM, Michael Sullivan wrote:
On Tue, 2006-01-17 at 11:20 -0600, John Jolet wrote:
On Jan 17, 2006, at 11:14 AM, Michael Sullivan wrote:
I'm concerned. When I got out of the shower just now and came to
check
my email, I didn't have any. Concerned that sendmail might not be
running, I ps'd for it:
bullet mail # ps ax | grep 'sendmail'
9939 ? Ss 0:00 sendmail: Queue [EMAIL PROTECTED]:30:00
for /var/spool/clientmqueue
10305 ? Ss 0:00 sendmail: accepting connections
10801 ? S 0:00 sendmail: ./k0FKmpDE010833
gpeplpqel.shankscape.com.: user open
10810 pts/0 R+ 0:00 grep sendmail
I see that sendmail is connected with gpeplpqel.shankscape.com. I
assume that someone at that host is trying to send mail to my
domain,
but I checked /var/spool/mail and I didn't see anything from
them. I
ps'd sendmail again and saw that they were no longer connected. I
checked /var/log/maillog and see a bunch of these:
Jan 17 11:04:10 bullet sm-mta[10801]: k0FKmpDE010833:
to=<[EMAIL PROTECTED]>, delay=1+20:15:18,
xdelay=00:03:10, mailer=esmtp, pri=8599167,
relay=gpeplpqel.shankscape.com. [69.25.212.153], dsn=4.0.0,
stat=Deferred: Connection timed out with gpeplpqel.shankscape.com.
Is there a way to make sure that unauthorized people are not sending
mail through my domain?
telnet yourdomain.com 25
helo somedomain.com
msg from someforeigndomain.com
rcpt to someotherforeigndomain.com
see if it slaps you down (note, i may have the msg from and rcpt to
backwards, always forget)
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I think I messed up the syntax somewhere:
camille ~ # telnet espersunited.com 25
Trying 64.149.52.102...
Connected to espersunited.com.
Escape character is '^]'.
220 bullet.espersunited.com ESMTP Sendmail 8.13.4/8.13.4; Tue, 17 Jan
2006 11:33:21 -0600
helo somedomain.com
250 bullet.espersunited.com Hello [192.168.1.1], pleased to meet you
msg from someforeigndomain.com
500 5.5.1 Command unrecognized: "msg from someforeigndomain.com"
rcpt to someotherforeigndomain.com
503 5.0.0 Need MAIL before RCPT
mail from instead of msg from. my bad.
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