anyone on from,, smtp?

Mike Hammett nanog at
Sun May 10 14:15:04 UTC 2020

I've noticed that the big mail outfits don't take complaints seriously from small volume-mailers. They seem to assume that you're either a big mail outfit with a ton of volume to feed their algorithms or you're spam. 

Mike Hammett 
Intelligent Computing Solutions 


----- Original Message -----

From: "Joseph Jenkins" <joe at> 
To: "Robert Story" <rstory at> 
Cc: "NANOG" <nanog at> 
Sent: Sunday, May 10, 2020 8:47:23 AM 
Subject: Re: anyone on from,, smtp? 

No not at all, just replaced with a random address. 

So nothing from MS as of yet, best I have gotten is these two addresses to go and file complaints. It's been 2 days with no response, MS isn't so attentive it seems. 

So at this point we are just queuing up the messages waiting for MS to allow us to send again. What a pain. 

On Sat, May 9, 2020 at 12:22 PM Robert Story < rstory at > wrote: 

On Fri 2020-05-08 19:35:08-0700 Joseph wrote: 
> We are getting this messages when sending emails from our domain. 
> We've submitted tickets, but haven't received a response yet. Anyone 
> have any insights? 
> 550 5.7.1 Unfortunately, messages from [] weren't sent. 

> It's our own address and everything on the Microsoft site says we are 
> clean with no issues. is your address? You are cloudfare's anycast dns server? 

$ whois 
inetnum: - 
netname: APNIC-LABS 
descr: APNIC and Cloudflare DNS Resolver project 

Robert Story < > 
USC Information Sciences Institute < > 

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