Wednesday·18·November·2009
Spam in SMTP not via SMTP //at 18:53 //by abe
While examining the mail queue after a big mail server migration, I found the following reason for a bounce (hostnames replaced according to RFC2606):
550-5.1.1 - 550-5.1.1 - 550-5.1.1 TO LEARN WHY YOUR EMAIL WAS REJECTED PLEASE GO HERE: 550-5.1.1 - 550-5.1.1 http://www.example.com/answers/dWtsb3R0b3NAdWtsb3R0ZXJ5LmNvLnVrPgA=AAA=/ 550-5.1.1 - 550-5.1.1 Cheap, Reliable Webhosting 550-5.1.1 http://www.example.com/a/hostgator/ 550-5.1.1 - 550-5.1.1 Round-Trip Flights under $200 from Priceline! 550-5.1.1 http://www.example.com/a/pricelinertf/ 550-5.1.1 - 550-5.1.1 Free Skype-to-Skype calls on your mobile 550-5.1.1 http://www.example.com/a/skype/ 550-5.1.1 - 550 5.1.1 -
What’s next? Advertisements in HTTP headers? Oh, I forgot, they already
exist and are called “referrer spam”.
Tagged as: SMTP, SOTD, Spam
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