Re: sendmail relay

From: ynotssor ("ynotssor")
Date: 11/29/03 

Date: Fri, 28 Nov 2003 18:37:29 -0800

"atse" <dunggaze@yahoo.com> wrote in message
news:vZSxb.16060$ZmO.8261@news01.bloor.is.net.cable.rogers.com

> I don't relay for all but the specific IP only to my RH9.0 Linux
> sendmail server. When I check the maillog, I found a record below.
> Does it mean someone tried to send email through my email server? Did
> this guy success to send email out? Security is still my major
> concern. Thanks for any advice.
> ---maillog--
> Nov 28 20:01:55 myserverdns sendmail[2518]: hAT11pES002518:
> ruleset=check_rcpt, arg1=<ed445@coolmail.net>, relay=[210.106.36.47],
> reject=551 5.7.1 we do not relay
> Nov 28 20:01:57 myserverdns sendmail[2518]: hAT11pES002518:
> from=<23232@454545.com>, size=0, class=0, nrcpts=0, proto=SMTP,
> daemon=Daemon0, relay=[210.106.36.47]

Someone used a (possibly unsecured) machine at "Dreamcity Media" in Seoul
South Korea to try and relay email using your server.

The "reject=551 5.7.1 we do not relay" and "nrcpts=0" shows that the relay
attempt was rejected, and that there were no recipients.

Things are working as they should.

        tony 

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