Not seeing issues in UK.  Google>m365. Accepted email fine processed in 5 
seconds


Colin
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> 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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>> https://list.mailop.org/listinfo/mailop
> 
> — 
> Demystifying “It Depends...” since 2001
> 
> Laura Atkins
> Word to the Wise
> [email protected]
> 
> Delivery hints and commentary: http://www.wordtothewise.com/blog      
> 
> 
> 
> 
> 
> 
> _______________________________________________
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