Is anyone able to contact GTT?

Wed Dec 18 20:58:27 UTC 2019

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 <mlm at pixelgate.net> wrote:

> On Tuesday 2019-12-10 06:58, Matt Harris wrote:
> >On Tue, Dec 10, 2019 at 8:51 AM Bottiger <bottiger10 at 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
>
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