I also show no data for the 6th, but no blocking here (granted, we are a very high traffic single IP sender).
On Thu, Apr 13, 2023 at 11:33 AM Fernando MM via mailop <mailop@mailop.org> wrote: > Hi, > > On Apr 06 we detected that 28 IPs were blocked in Outlook.com, all with > the following error: > > 550 5.7.1 Unfortunately, messages from [185.103.9.41] weren't sent. Please > contact your Internet service provider since part of their network is on > our block list (S3150). You can also refer your provider to > http://mail.live.com/mail/troubleshooting.aspx#errors. > > > Although some of the blocked IPs were new, most of them were in use by the > same customers for years without issues. Part of them didn't had a single > spam report or spam trap hit in the last 3-6 months. > > After making sure that these servers weren't compromised, I opened tickets > at https://olcsupport.office.com/ and, after escalation, the response was > that the IPs didn't qualify for mitigation at this time or that there were > "changes in email sending volume" ( there weren't, the volume hasn't > changed since we have limits for each IP/customer to avoid these issues ) > > Today I noticed that the data on Apr 06 in missing in SNDS. All other > dates are showing up, just Apr 06 is missing. > > I was wondering if anyone else experienced similar issues on Apr 06 with > missing data on SNDS or a high number of IPs getting blocked? > > Thanks. > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop >
_______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
