It has become apparent that Microsoft has completely lost control over its servers.
I’ve been getting more than a few eMails bounced back recently, of the form:
Recipient: [SMTP: [eMail address redacted]]
Reason: 550 SC-001 (SNT004-MC2F3) Unfortunately, messages from 184.172.98.210 weren’t sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
This appears to affect eMails directed to @live.com and @Hotmail.com. There may be more, but I haven’t seen any bounce-backs from other domains yet.
I don’t know quite what to make of this. I have contacted my Server Wizard and hope that the situation will be resolved shortly.
In the interim, however, I cannot respond to eMails originating from these domains. All my eMail from each of my domains (including automatically generated eMail from PrefBlog and PrefLetter) is routed through the server at 184.172.98.210.
I apologize for the inconvenience and hope to have this situation resolved promptly.
If it was a single email that bounced then it could be MS just considered it too spammy, but if all your mail is coming back then 9/10 you’ve been blacklisted. If that’s the case, all the mainstream MS domains will likely be affected… hotmail.com, live.com, outlook.com, msn.com.
Hope you get it sorted out
So far I’ve learned about the Sender Policy Framework and Sender Scores. I’ve also found a recent blog post published by the helpful people who want to sell me stuff.
Oh, what fun!
I am advised that: