Not an authority on this, so take my reply for what you want. As far as I know this list is used to keep track of ip-addresses by ISPs for home-addresses, which are not intended to be used for outgoing mail.
You can whitelist your ip-address on this list yourself and all should be back to normal. I faced the same issues and adding my ip did solve the 550s. Do note that my ip gets removed every year and thus should be re-added ever year. Sincerely, martijn@ On 08/06/17 16:51, Walter Alejandro Iglesias wrote: > Hello everyone, > > I was using smtpd(8) (static IP and FQDN resolving direct and reverse) > for a year without problems. Today sending from my server (from the > same address I'm using now) to gmail and hotmail they answered the > following (MAILER-DAEMON answer). > > Sending to gmail addresses: > > *@gmail.com: 550-5.7.1 [185.37.212.61] The IP you're using to send > mail is not authorized to send email directly to our servers. Please > use the SMTP relay at your service provider instead. Learn more at > https://support.google.com/mail/?p=NotAuthorizedError > e1si6736354wra.236 - gsmtp > > Sending to hotmail: > > *@hotmail.com: 550 DY-001 (SNT004-MC3F42) Unfortunately, messages from > 185.37.212.61 weren't sent. Please contact your Internet service > provider. You can tell them that Hotmail does not relay > dynamically-assigned IP ranges. You can also refer your provider to > http://mail.live.com/mail/troubleshooting.aspx#errors. > > > On the hotmail link above the explanaition for code DY-001 is: > > Mail rejected by Outlook.com for policy reasons. We generally do not > accept email from dynamic IP's as they are not typically used to > deliver unauthenticated SMTP email to an Internet mail server. If you > are not an email/network admin please contact your Email/Internet > Service Provider for help. http://www.spamhaus.org maintains lists of > dynamic and residential IP addresses. > > It doesn't happen with yahoo. > > I visited spamhaus.org site and found out my IP is included in a list > called PBL that, as they explain is not a spammers list, it just > includes dynamic and "non mail server IP ranges". > > Does someone here know what is "non mail server IP ranges" about? Or, > how could my static IP could be taken as dynamic (some DNS faliure at my > ISP end?). >
