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
On 04/09/2026 11:21, Colin Johnston via mailop wrote:
Not seeing issues in UK. Google>m365. Accepted email fine processed
in 5 seconds
Colin
Sent from my iPhone
On 4 Sep 2026, at 11:05, Laura Atkins via mailop <[email protected]>
wrote:
Seeing reports of this from other places.
laura
On 4 Sep 2026, at 10:31, lukn via mailop <[email protected]> wrote:
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
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Word to the Wise
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