Its looking like things are getting better. We have seen delivery resume and others have too per talk in emailgeeks.
________________________________ From: mailop <[email protected]> on behalf of Matthew Francis via mailop <[email protected]> Sent: Friday, September 4, 2026 13:00 To: [email protected] <[email protected]> Subject: Re: [mailop] Limited deliverability to M365 Likewise, though it started for us this morning at 08:00 UTC. Matt. Paul Smith via mailop wrote on 2026-09-04 12:12: > We're having problems in the UK > > Lots of: 451 4.7.500 Server busy. Please try again later from.... (S77719) > > Seems to have started around 8pm UK time (BST) > > Paul _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
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