So the culprit was a procmail filter which rewrites incoming mail. The standard report looks just fine with the filter disabled:
X-Spam-Report: -------------------------------------------------------------- pts rule name description ---- ---------------------- ------------------------------------------------ -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 5.0 GTUBE BODY: Generic Test for Unsolicited Bulk Email I totally forgot about it. Damn! Sorry for all the commotion. пн, 1 окт. 2018 г. в 18:53, Александр Кириллов <nevis...@gmail.com>: > No, it looks the same in the mailbox but I have some procmail filters > which handle incoming mail. And that can be a problem. Thanks! > > пн, 1 окт. 2018 г. в 18:28, Wolfgang Breyha via Exim-users < > exim-users@exim.org>: > >> Александр Кириллов via Exim-users wrote on 01/10/2018 16:55: >> > Thanks, Wolfgang. Didn't really help much with the part I'm interested: >> > >> > X-Spam-Report: Content analysis details: (2.1 points) * -1.0 >> ALL_TRUSTED >> > Passed through trusted hosts only via SMTP * -1.9 BAYES_00 BODY: Bayes >> spam >> > probability is 0 to 1% * [score: 0.0000] * 5.0 GTUBE BODY: >> Generic >> > Test >> > for Unsolicited Bulk Email >> >> How do you add that? It definitely looks better here: >> X-Spam-Report: Content analysis details: (-2.6 points) >> * 1.0 MISSING_HEADERS Missing To: header >> * -1.0 MAILING_LIST_MULTI Multiple indicators imply a widely-seen list >> * manager >> * 0.3 MIME_8BIT_HEADER Message header contains 8-bit character >> * 1.0 FROM_EXCESS_BASE64 From: base64 encoded unnecessarily >> .... >> >> And it ever did since 2006;-) >> >> Or is it possible that your MUA messes with header whitespace? >> >> Greetings, Wolfgang >> -- >> Wolfgang Breyha <wbre...@gmx.net> | https://www.blafasel.at/ >> Vienna University Computer Center | Austria >> >> >> -- >> ## List details at https://lists.exim.org/mailman/listinfo/exim-users >> ## Exim details at http://www.exim.org/ >> ## Please use the Wiki with this list - http://wiki.exim.org/ >> > -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/