or try the openrelay tool from http://kickme.to/dpsecurity
----- Original Message ----- From: "Steven J. Sobol" <[EMAIL PROTECTED]> To: "Dan Phan" <[EMAIL PROTECTED]> Cc: "Nuzman" <[EMAIL PROTECTED]>; "security basics" <[EMAIL PROTECTED]> Sent: Tuesday, March 25, 2003 4:36 PM Subject: RE: smtp relay tester? > On Mon, 17 Mar 2003, Dan Phan wrote: > > > mail from: [EMAIL PROTECTED] > > 250 OK - mail from <[EMAIL PROTECTED]> > > rcpt to: [EMAIL PROTECTED] > > 550 Relaying is prohibited > > > > if you see: > > > > 550 Relaying is prohibited.... > > > > You are safe :) > > Hardly. There are a lot of exploits for older versions of > various mail servers that allow attackers to get around the > restrictions. ordb.org, as someone else mentioned, is a good > place to start as is (IIRC) abuse.net. You don't want to run > one simple test, you want to run tests that check for all or > most of the exploits out there. > > -- > Steve Sobol/CTO/JustThe.net LLC/Mentor On The Lake (Cleveland), OH/888.480.4NET > "This country has a strong ethical foundation, but... I hesitate to say that > erosion has set in, but it is clear that more and more of what we are is being > built on sand and not on that foundation." - G. Waleed Kavalec, in SPAM-L > > > ------------------------------------------------------------------- > SurfControl E-mail Filter puts the brakes on spam, > viruses and malicious code. Safeguard your business > critical communications. Download a free 30-day trial: > http://www.surfcontrol.com/go/zsfsbl1 > > ------------------------------------------------------------------- SurfControl E-mail Filter puts the brakes on spam, viruses and malicious code. Safeguard your business critical communications. Download a free 30-day trial: http://www.surfcontrol.com/go/zsfsbl1
