I just tried to forward a lot of spam messages, and got the response: 554 Recipients' domain disabled Reporting-MTA: dns; googlemail.com Received-From-MTA: dns; ----------@gmail.com Arrival-Date: Sat, 30 Dec 2017 20:49:25 -0800 (PST) X-Original-Message-ID: Final-Recipient: rfc822; sp@mnesty.com Action: failed Status: 5.0.0 Remote-MTA: dns; mxb.mailgun.org. (54.69.170.70, the server for the domain mnesty.com.) Diagnos…
Tracked at https://gitlab.com/stavros/Spamnesty/issues/81:
> Unfortunately Mailgun has disabled the domain due to rate limits. All we can do is wait […] I think it's just the HN effect that got it to send too many messages at once.