Hey All,
I thought I would try to hijack this this semi-OT thread. I while back I was getting mail rejected by not signing my domain up with DNSWL. I was then either weekly or monthly to emailed confirm my set-up was still valid. I found this annoying as my information rarely changes. I stopped responding they still send me prompts and I think they now accept my mail. I bring it this up because my un-informed opinion from my experience with DNSWL is that it sort of extortion for control of email traffic. Thoughts? Ben > On Mar 16, 2019, at 6:28 AM, Bastian Blank > <bastian+postfix-users=postfix....@waldi.eu.org> wrote: > > Hi Johannes > > On Sat, Mar 16, 2019 at 10:56:11AM +0100, Johannes Bauer wrote: >> <REDACTED> host >> eur.olc.protection.outlook.com[104.47.125.33] said: 550 5.7.1 >> Unfortunately, messages from [37.120.172.118] weren't sent. Please contact >> your Internet service provider since part of their network is on our block >> list (S3150). You can also refer your provider to >> http://mail.live.com/mail/troubleshooting.aspx#errors. >> [SG2APC01FT051.eop-APC01.prod.protection.outlook.com] (in reply to MAIL >> FROM command) > > So your _provider_ is on the the MS blacklist. Netcup did not show up > on my radar, but I don't know what else. > >> Here's what I've checked/tried: >> * Neither I nor any of my users send spam. The mail volume is VERY low. > > It is really low, so low that DNSWL did not pick the IP up as recurrent > sender or refuse to. > >> * I use a reputable service provider for my server (i.e., I suspect if >> there were other customers in my IP range doing bad things, they'd be >> kicked out). > > Not according to the rejection by MS services. > >> In my desparation I've even registered to the Google Postmaster thing >> and demeaningly "verified" my domain by altering the DNS: >> https://postmaster.google.com/ -- all data is entirely empty (even >> though there were positively mails blocked since I've registered with them). > > For the correct domains? I don't see any verification records for > spornkuller.de. >> >> If anyone has any ideas of what could be wrong, I'm absolutely grasping >> for straws here. Any help is greatly appreciated. > > Let's point out the obvious(?): > > You MTA is known under different names: > >> johannes-bauer.com mail is handled by 10 johannes-bauer.com. >> spornkuller.de mail is handled by 10 spornkuller.de. > > It does not advertise ESMTP (how the heck did you manage to > miss-configure it this much?): > > | % nc spornkuller.de 25 > | 220 Hi there > > Claim your info at dnswl.org. > > Regards, > Bastian > > -- > The best diplomat I know is a fully activated phaser bank. > -- Scotty
