On Tue, May 7, 2024 at 10:29 AM Jarland Donnell via mailop < mailop@mailop.org> wrote:
> Hoping it’s not just me, looking for a sanity check. Our queues today > are packed with these responses from Microsoft’s mail servers: > > 451 4.7.500 Server busy. Please try again later > > We are not seeing that error and are not having any issues delivering to outlook/hotmail/msn at the moment. Cheers, Mark
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