Thank you. Thats what i expected.
Unfortunately sophos requires one be a customer as it seems. Sophos answer: "Please ask recipient to raise a ticket with us so we can submit emails to lab team.". Stefan -----Ursprüngliche Nachricht----- Von: Olivier Depuydt via mailop <mailop@mailop.org> Gesendet: Donnerstag 20 August 2020 11:13 An: Stefan Bauer <stefan.ba...@cubewerk.de> CC: mailop <mailop@mailop.org> Betreff: Re: [mailop] Sophos appliance reject mails from specific domains with Administrative prohibition, confirmed spam in logs Hello. You need to contact Sophos support (through) their website. They are using an internal list on their equipment in addition to the regular public blacklists. Best regards, Olivier Le jeu. 20 août 2020 à 10:58, Stefan Bauer via mailop <mailop@mailop.org> a écrit : Hi, since days, we try to find out why one of our customer domain is blocked, when sending mails to remote sites, where Sophos UTM-appliance (e.g. UTM-430) are in place. All we see is at smtp level: <john....@famo24.de <mailto:john....@famo24.de> >: host mail3.famo24.de[80.155.146.58] said: 550 Administrative prohibition (in reply to end of DATA command) Recipients (admins) confirm, that according to local FW logs, they see 'confirmed spam'. All of our sending IPs are in no blacklist nor have been over the last years. I checked all the known blacklists. Even cyrens own site. All is green and good. One of our sending IPs is 116.203.31.6 Anyone with an idea? Thank you. Stefan _______________________________________________ mailop mailing list mailop@mailop.org <mailto:mailop@mailop.org> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop -- Olivier Depuydt Site Reliability Engineer Web | Blog <http://cheetahdigital.com/blog> | Linkedin | Twitter | Facebook
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