Have a look here https://notes.sagredo.eu/qmail-notes-185/qmail-inject-sieve-vacationreject-messages-trouble-133.html
Il giorno mer 20 mar 2019 alle ore 21:30 Leonardo Porto < [email protected]> ha scritto: > Hi, > > Gmail is rejecting my vacation messages set in managesive filters, when I > look qmail-send logs I find this: > > 2019-03-20 11:59:22.717746500 info msg 100921151: bytes 690 from > <<>@my.default.domain> qp 12303 uid 89 > > 2019-03-20 11:59:24.229429500 delivery 2: failure: > Connected_to_64.233.190.27_but_sender_was_rejected./Remote_host_said:_555_5.5.2_Syntax_error._v3si1315429qth.170_-_gsmtp/ > > Hotmail accept it so I look in the message source code and find out the > Return-Path is "<>"@my.default.domain. > It seems the null sender <> is the default and recommended behaviour to > prevent loops but apparently my problem is the something in the process is > adding my default qmail domain after it. > By the way, the email account used in this case belongs to another domain, > not the default domain. > Does anyone have a clue why this is happening? > > Thanks. > > >
