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>: 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 > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > -- Olivier Depuydt Site Reliability Engineer Web <https://cheetahdigital.com> | Blog <http://cheetahdigital.com/blog> | Linkedin <http://www.linkedin.com/company/cheetahdigital/> | Twitter <https://www.twitter.com/Cheetah_Digital/> | Facebook <https://www.facebook.com/CheetahDigital/> <https://drive.google.com/open?id=1S8f5JdCzLVfN44u3V9m8zcNbvjxZO-nt> <https://drive.google.com/open?id=1S8f5JdCzLVfN44u3V9m8zcNbvjxZO-nt> <https://drive.google.com/uc?export=view&id=1S8f5JdCzLVfN44u3V9m8zcNbvjxZO-nt> <https://drive.google.com/uc?export=view&id=1S8f5JdCzLVfN44u3V9m8zcNbvjxZO-nt> <https://drive.google.com/uc?export=view&id=1S8f5JdCzLVfN44u3V9m8zcNbvjxZO-nt> <https://drive.google.com/uc?export=view&id=17Ecb7eDIeJeAx4qb9jJNqASt2tCTiuD6> <https://drive.google.com/uc?export=view&id=17Ecb7eDIeJeAx4qb9jJNqASt2tCTiuD6> <https://drive.google.com/uc?export=view&id=17Ecb7eDIeJeAx4qb9jJNqASt2tCTiuD6> <https://cheetahdigital.com> <https://cheetahdigital.com> <https://cheetahdigital.com> <https://cheetahdigital.com>
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