nanog mailing list archives

Re: Returned mail: see transcript for details


From: Valdis.Kletnieks () vt edu
Date: Mon, 05 Aug 2013 00:52:16 -0400

On Sun, 04 Aug 2013 23:07:59 -0500, Jimmy Hess said:

I thought the mailing list software rewrote the return path  to
suppress bounces?

Yeah, but every once in a while you'll come across a mail server hosted at
Billy Bob's Bait, Tackle, and E-mail, or Klooful Joe's Bargain Hosting,
that doesn't understand that bounces go to the RFC821 MAIL FROM and instead
insist on sending to the RFC822 From:.

In this case, it appears to be an end user with a badly misconfigured
Fetchmail 6.3.21 that isn't handling bounces sanely.

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