Probably, somebody has set a redirection rule from his outlook account to mailbox on your server. If so, there is no problem except misconception valid mail can only arrive from SPF authenticated server.
17.03.2018 15:38, postmas...@akxnet.de пишет: > Hi! > > In my mail server logs, I notice for weeks attemps of 40.92.6x.xx IPs > (outbound.protection.outlook.com) to deliver mails for the > facebookmail.com domain despite that these Microsoft IPs are not listed > in the SPF record of facebookmail.com. > > A report of the problem to the Microsoft CERT a week ago remained > unanswered and without any other reaction. > > Some examples: > > 1 Mar 16 09:51:21 frodo postfix/policy-spf[7616]: Policy action=550 > Please see > http://www.openspf.net/Why?s=mfrom;id=update%2Bzj4o9%3Dzsy6t9%40facebookmail.com;ip=40.92.66.106;r=frodo.akxnet.de > 1 Mar 16 15:12:55 frodo postfix/policy-spf[14982]: Policy > action=550 Please see > http://www.openspf.net/Why?s=mfrom;id=notification%2Bzj4o9%3Dzsy6t9%40facebookmail.com;ip=40.92.69.92;r=frodo.akxnet.de > 1 Mar 16 09:42:08 frodo postfix/policy-spf[6563]: Policy > action=550 Please see > http://www.openspf.net/Why?s=mfrom;id=notification%2Bzj4o9%3Dzsy6t9%40facebookmail.com;ip=40.92.65.65;r=frodo.akxnet.de > > Does anyone else has that problem? And if yes, is there any other way to > get Microsoft aware of that and stop those attempts? > > Regards, > > Andreas > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop -- Vladimir Dubrovin @Mail.Ru _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop