tag #33 pending thanks The issue is hinted by the pipe man page: """ SINGLE-RECIPIENT DELIVERY Some destinations cannot handle more than one recipient per delivery request. Examples are pagers or fax machines. In addition, multi-recipient delivery is undesirable when prepending a Delivered-to: or X-Original-To: message header. To prevent Postfix from sending multiple recipients per delivery request, specify transport_destination_recipient_limit = 1 in the Postfix main.cf file, where transport is the name in the first column of the Postfix master.cf entry for the pipe-based delivery transport. """ So, I added a line debbugs_destination_recipient_limit = 1 to postix's main.cf and the issue should be gone... This will be the test mail. Mike -- DAS-NETZWERKTEAM mike gabriel, rothenstein 5, 24214 neudorf-bornstein fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb