On Sun, Jun 27, 2010 at 11:33:02AM -0400, Wietse Venema wrote: > I checked out a few details, and the result is that turning on > VERP, before sending to a mailing list alias, does not turn on VERP > when delivering to the members of that mailing list (except in a > very special case that involves only local recipients). > > It can (and should) be made to work outside that special case, but > that requires a few changes to Postfix internals, and that will > take more time than I have available now. > > There is a workaround to turn on VERP after the mailing list. For > example, deliver mail to the mailing list alias with one Postfix > instance, then deliver mail to the members of that list with a > second Postfix instance that turns on VERP via one of the methods > in message <20100626210934.27b7e1f3...@spike.porcupine.org> (this > involves content filters, or the Postfix 2.7 smtpd_command_filter > feature).
Thanks for checking this out and finding the error, and also thanks for giving hints for workarounds. I was quite puzzled that I could not make it work. best regards keld
