2017/5/18 -Hello. I am having a big issue with this. I am using Plesk Onyx Version 17.5.3 Update #6 Web Host Edition on Ubuntu 14.04.5 LTS.
2014/12/23 -You need a PTR record that resolves 128.199.39.109 to the hostname of your sending server. Might also want to look into SPF records for your ...
2013/11/8 -Hi everybody! I'm having an issue sending mail to a couple recipient domains and I'm pretty sure that I know what's causing it.
2017/11/26 -1 Client host rejected: cannot find your reverse hostname is encountered. We strongly advise contacting your recipient's email provider to check ...
2017/3/3 -Hello, I recently installed mail cow on my VPS box and I getting this error message all the time after when I try to send an email to an ...
2024/4/18 -Cause. Incorrect or missing PTR record of the sender's mail server. Resolution. Contact the server hoster or provider of the IP address in order ...
2013/11/22 -The receiving server (kupwg.de) is doing reverse DNS lookups but can't find a corresponding PTR record for your server. Edit: spelling.
2016/11/28 -Hello, few days ago I've installed ISPConfig on VPS. Wverything worked, but in mail queue i found some logs like this: (host ...