One was mail sent from mxroute, the other was through gmail. noc at gtt.net is listed as their contact at RIPE.
I tried using the inoc email on December 10th about 8 days ago, still no reply. I also asked one of my hosts which I think is a big customer of theirs, and they got a reply yesterday asking for the source IP for a traceroute when they could have just used any of the IPs near the top to see the issue. I hope I don't have to wait another week for another reply. 1 week to reply to a large customer is surprisingly long. On Sat, Dec 14, 2019 at 11:19 AM Mark Milhollan <m...@pixelgate.net> wrote: > On Tuesday 2019-12-10 06:58, Matt Harris wrote: > >On Tue, Dec 10, 2019 at 8:51 AM Bottiger <bottige...@gmail.com> wrote: > > >>I sent an email to noc at gtt.net from 2 different emails and both got a > >>reply saying: > >> > >> 5.1.0 - Unknown address error 550-'5.4.1 Recipient address rejected: > >> Access denied [HE1EUR01FT058.eop-EUR01.prod.protection.outlook.com]' > >> > >>Not sure if this means if they are blocking my email or if their email is > >>broken. > > Could be either, but my money is on them blocking that particular > address (block perhaps) because it has been sending messages that seem > to be low quality aka much of which seemed to be spam. How different > were the sources? If both were Office 365 that turns out to not be very > different and I'll stick with them hating on that particular address > (block). If the second was a service provider not using O365 then it > swings to being more likely that GTT hates all those source (email) > addresses/domains. > > >The response indicates that the recipient address was > >rejected, not the sender address > > It is common to postpone rejections and deferrals until the RCPT TO > phase, when possible. > > > /mark >