It's widespread. See https://www.mail-archive.com/[email protected]/msg27209.html , https://www.mail-archive.com/[email protected]/msg27206.html et al.
Cheers Chris On Fri, 4 Sept 2026 at 13:20, Dan Malm via mailop <[email protected]> wrote: > Hi, > > At ~07:47 today Microsoft started throttling traffic for all but 1 of my > customer smtp ips (spread out over multiple /24s) with this: > > 451 4.7.500 Server busy. Please try again later from [46.30.211.242]. > (S77714) > > Delivery issues with microsoft isn't exactly uncommon, but I've never > had it hit this many addresses all at once which makes me think (hope?) > it's not an issue on my end. But I'm also not seeing the same on other > email systems I have... > > Anyone else affected today? > > -- > BR/Mvh. Dan Malm, Systems Engineer, one.com > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop >
_______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
