Anyone have contact with Microsoft network ops? They've blackholed my SMTP (204.11.50.134) (which is used by me and half a dozen other people, none of whom send spam), and my admin's on vacation and I don't wanna screw up his time off. This is obviously a false positive though.
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@pluralistic Do you have regular contact with people using outlook or ms365 accounts? MS blocks your ip when there were too less mails were sent in the past.
Do you have an exact error message?
@pluralistic I would not be surprised if your problem is related to the last line:
```
NetRange: 204.11.50.128 - 204.11.50.143
…
NetName: PRIORITYCOLO-204-11-50-128
Organization: Boing Boing (BB-50)
Comment: Note: We run a TOR exit relay on 204.11.50.131, The node at this IP address is very likely protected by DMCA "Safe Harbor" provisions as a result.
```
getting a MSFT contact to fix mail….. sorry, but can only wish you good luck :(
@jeroen It's fixed, thanks.
@pluralistic Then, you had luck ;)
@pluralistic We definitely need a solution to this.. Microsoft & Google effectively control what e-mail gets sent and what does not today.
I'm my companies Office 365 admin. If you'd like, I'll send you my email address and you can email me. And then when it's blocked I can report it as a mistake. I don't know if one report will be enough but it can't hurt.
@pluralistic It's a rite of passage. You haven't run a real mailserver if you haven't been blocked by Microsoft mailservers at least once.
@hzulla @pluralistic a.k.a. "vibe blocking" ;)
@stealthradek
And if your NTP servers are down then you're doing "vibe clocking"
@hzulla @pluralistic
@pluralistic you probably just need a couple of dns records to prove you are who you say you are (smtp anyways).
@pluralistic and for what's it's worth, it's not worth it to host your own smtp server - usually. it's a major pain in the ass.
@arrrg With all respect, this isn't helpful. I've been self-hosting my mail since the 1990s and the server administration is the former CTO of Wikimedia. We don't have any of these issues, and I'm not in the market for someone telling me that I shouldn't host my own mail.
Do you know anyone with an @outlook[.]com email address or maybe even a paying O365 customer?
Then just try to send them an email and let them open a ticket about issues RECEIVING mails from you (without mentioning anything that a regular recipient wouldn't know).
That's usually the fastest way to resolve such issues...
@pluralistic Believe it or not, I have had decent results going through their support channels. This has happened to my mailserver more than once.
@pluralistic
Good luck. I'm sorry I can't help you but I won't be surprised that they blacklisted you **purposely**
@pluralistic if you find one, please let us know. They blocked one of our IPs and their SNDS system is broken and won't let us add our own IPs so we can't find out why.
@pluralistic my condolences are all i can offer
@pluralistic One of the larger bills I pay for Internet services is for outgoing SMTP. Basically I pay them to deal with all this shit.
@pluralistic Sir, I do not wish to frighten or alarm you, but dealing with Microsoft with regard to email issues is akin to performing an auto appendectomy with nothing but LSD and Absinthe as an anesthetic.
I wish you luck. Moreso, I truly hope you retain your sanity and composure in the face of the Lovecraftian horrors that lie before you.
Boosted for exposure. gl;hf
@pluralistic Sir, I do not wish to frighten or alarm you, but dealing with Microsoft with regard to email issues is akin to performing an auto appendectomy with nothing but LSD and Absinthe as an anesthetic.
I wish you luck. Moreso, I truly hope you retain your sanity and composure in the face of the Lovecraftian horrors that lie before you.
@pluralistic go to olcsupport.office.com and log a ticket. They do resolve things. It normally takes two iterations. They say there is nothing wrong with your IP, then if you think there still is, send them error messages. But it does get fixed.
Logs and error messages help.
@kat @pluralistic Once filed, hit me up if you need someone to push from inside the company. Happy to help, especially if I have a name of someone to escalate with (it’s a big company and that’s not a team I work with).
Actually my vps on a blocked cloud subnet got unblocked yesterday. This is after I complained after they initially did not offer a mitigation and my vps provider also filed a request.
Took 24h after a mitigation confirmation by Microsoft to be able to send mails to olc again.
@pluralistic @Aaron @kat This behaviour from Microsoft drove me to give up running my own email server.
In addition to rejected outgoing mail, I began to suspect that some incoming mail was being silently dropped by certain operators, though I never did confirm or reject the suspicion. It's possible I imagined it, but paranoia is just one outcome when a crucial communication medium is interfered with as a matter of course. Which is why we need companies like this to be more accountable for their actions.
I didn't get any movement from them when I submitted a complaint, and this was one reason I eventually gave up and moved to a European SaaS email provider. In fact, shortly after switching, even they had one of their IP addresses blocked for a few days. They were cloud hosted, so I expect there had been bad behaviour from a tenant in the same IP block. I think I've changed provider since then.
I expect you'll get things resolved more easily, but it really shouldn't require contacts in the right places to get this sort of issue moved along.
@GerardThornley @pluralistic @Aaron @kat In my experience, during the last couple of years at least, the various MSFT mail related support people have been fairly responsive (at least compared to eg GOOG) but it *could* take a couple of iterations to get things sorted out.
There is still some "if you're not us, you're little people and should not be running a mail service" attitude, but not as strong as can be seen in other "too big to block" operators.
@pluralistic Looks like a mitigation should resolve the issue in the next 24-48 hours. Hopefully sooner.
@Aaron Thank you! It looks like we're all sorted! Appreciate it!
@pluralistic @Aaron @kat It would also be good if independent mail server operators file complaints at https://competition-policy.ec.europa.eu/antitrust-and-cartels/procedures/complaints_en so this anti-competitive behavior can be ended for once and for all.
