Bill Healy wrote: >The majority of the messages my servers turn away are pure spam and most >are addressed to accounts that have never existed, so it's not like the >addresses have been harvested from someone's infected computer. It's >become common now to just try long lists of common names @domain.com to >try and get spam through. > >Here's a log extract from one of my scanning servers from today, none of >the unknown accounts ever existed, but they did manage to guess one >correct address and the message was queued, but later deleted when it >was scanned and found to be spam. > >Dec 30 14:10:17 gateway sendmail[25325]: jBUMAAkD025325: ><[EMAIL PROTECTED]>... User unknown >Dec 30 14:10:17 gateway sendmail[25325]: jBUMAAkD025325: ><[EMAIL PROTECTED]>... User unknown > Yes, and checking that the rcpt. is valid definitely relieves a good deal of load from your antivirus/spam filters... but, unless the sender of these attempted spams is a valid -- but forged -- address, a bounce back message likely wouldn't hit spamcops trap and trigger a listing.
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