I recommand using MS SenderSupport website for this problem : https://sendersupport.olc.protection.outlook.com/snds/data.aspx (you need to create an account and register your IP / AS / whatelse).
Rémy -----Original Message----- From: swinog-boun...@lists.swinog.ch <swinog-boun...@lists.swinog.ch> On Behalf Of Per Jessen Sent: Tuesday, 27 April 2021 19:04 To: swinog@lists.swinog.ch Subject: [swinog] mail.protection.outlook.com said: 451 4.7.500 Server busy. Please try again later Does anyone have any idea what sort of rate limits are used by Office365 ? We seem to be hitting $SUBJ more and more often, so we have been scaling back delivery frequencies. It just seems a bit random and arbitrary. -- Per Jessen, Zürich (19.4°C) _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
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