On Thu, 05 Apr 2018, deloptes wrote: > I think it was already discussed here, but I may have missed the point. [...] > The mail system > > <debian-user@lists.debian.org>: host bendel.debian.org[82.195.75.100] said: > 550 > 5.7.1 <debian-user@lists.debian.org>: Recipient address rejected: Mail > appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to > correct > HELO and DNS MX settings or to get removed from DNSBLs; MTA helo: > localhost.localdomain, MTA hostname: unknown[221.224.30.132] > (helo/hostname > mismatch) (in reply to RCPT TO command) >
This mail is coming to bendel from 221.224.30.132, which is listed in CBL[1] because it is part of the confiker bot net. It's also misconfigured. It should provide a valid DNS name in the EHLO request, ideally one whose forward and reverse match the provided IP address. 1: https://www.abuseat.org/lookup.cgi -- Don Armstrong https://www.donarmstrong.com A Bill of Rights that means what the majority wants it to mean is worthless. -- U.S. Supreme Court Justice Antonin Scalia
