You probably did not enable xforward. https://www.ijs.si/software/amavisd/README.postfix.html#basics_transport_smtp-client
> I'm a bit puzzled. I run a Perl script on our mailserver which once per > day will send me a summarized overview of all in- and outgoing mails. > But these mail are spam and virus checked by amavis: > > X-Spam-Status: Yes, score=24.574 > Received: from [my.servers.name] ([127.0.0.1]) > by localhost [my.servers.name] [127.0.0.1]) (amavisd-new, port > 10024) > with ESMTP id 5qjFB26fDv8l for <logging@[my.domain]>; > Tue, 12 Nov 2019 09:50:55 +0100 (CET) > Received: by [my.servers.name] (Postfix, from userid 0) > id B874A8075CE1; Tue, 12 Nov 2019 09:50:55 +0100 (CET) > > Why? > > amavisd.conf > > @mynetworks = qw( 127.0.0.0/24 192.168.27.0/24 [etc.]) > [...] > $policy_bank{'MYNETS'} = { # clients in @mynetworks > bypass_spam_checks_maps => [1], # don't spam-check internal mail > bypass_banned_checks_maps => [1], # don't banned-check internal mail > bypass_header_checks_maps => [1], # don't header-check internal mail > bypass_virus_checks_maps => [1], > }; > > Any ideas?