Hello, for a couple of hours Office365 recipients are unreachable from our server (not heeg.de, another one) due to SMTP rejections of this kind:
(host viakom-de.mail.protection.outlook.com[104.47.5.36] said: 451 4.7.500 Server busy. Please try again later from [...]. (S77719) [HE1EUR02FT003.eop-EUR02.prod.protection.outlook.com] (in reply to end of DATA command)) "Server busy" is a blatant lie, the server accepts the mail without issues from another IP address. Anyone from Microsoft/Outlook available to look into the matter? Cheers, Hans-Martin _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
