We are experiencing a behavior in lmtpd such that it inserts
an "@" sign and hostname in the Return-Path if the Return-Path
does not contain an "@" sign. So bounces on our system have a
Return-Path with <@hostname> and no username.
(As an aside, we are running qmail as opposed to sendmail.)
We are investigating this further and would appreciate
any assistance in understanding this behavior and
identifying a resolution.
Thank you,
Steve
Steven J. Heist
Mail Service Coordinator
Technical Services
University at Buffalo
ph: 716.645.7749
