Hello, Same here. It seems to be a broader issue affecting multiple organizations. https://www.reddit.com/r/sysadmin/comments/1w6yw7g/exchange_online_server_busy_please_try_again/ https://www.reddit.com/r/Office365/comments/1w6yc39/exchange_issues/
Regards, Ken 2026年9月4日(金) 18:34 lukn via mailop <[email protected]>: > Hello Mailops > > A few hours ago Microsoft suddenly started to drastically rate limit all > our servers with the following message: > > > 451 4.7.500 Server busy. Please try again later from [x.x.x.x]. (S7 > 7719) > > Is anyone else affected? Problem on their or our side? (Downdetector for > some European countries hints towards Redmond...) > > Best regards > lukn > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop > -- Tanabe Ken-ichi HENNGE K.K. / Cloud Product Development Division [email protected] +81-3-6415-3660
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