Dan Kaminsky's Blog

Experimental Mail Server Analyzer Online

August 22, 2008Dan Kaminsky7 Comments

I’ve modified the test scripts slightly, to allow arbitrary triggering agents (such as a mail server) to report back the quality of their DNS queries.  You may very well be surprised what NS’s your mail servers are configured to use.  More often than you’d think, people just don’t know.

7 Responses

  1. mubixAugust 23, 2008 at 7:45 am

    Dan, you are a secret spy harvesting email addresses for spammers AREN’T YOU! ADMIT IT!

  2. DanKomakAugust 23, 2008 at 9:48 am

    mubix, you are right 🙂

  3. Dan W.August 24, 2008 at 12:36 am

    The world is being overrun by Dans’ — LOL!!

  4. ollienoAugust 25, 2008 at 12:59 am

    Hi,
    The entreprise mail server can’t find and deliver the message …
    is that the goal of your tool?
    regards,

  5. Mads DamAugust 25, 2008 at 8:18 pm

    Thanks for offering a free dns and mail scan!
    In my case, it looked as if both were safe enough… 🙂

  6. InternetSucksBigTimeAugust 26, 2008 at 3:10 am

    ollieno
    i tryed it twice with some bulk address i’ve got and the result is a none delivered mail and a report showing on this site telling if the DNS server is secure or not.
    May he is collecting addresses to send a Pwonie later, who knows.

  7. IanAugust 27, 2008 at 4:06 pm

    I think the attempts to send mail are incidental to the test. The act of your mail server trying to find dns answers is the interesting bit. The test doesn’t care what happens to the mail.