Hi everyone. My eldest sent me an email yesterday who uses Outlook.com for Android. Never had issues before but it claimed I should contact my ISP. My ISP does not offer email, so I use my murena @e.email address regularly. The reason given for non-delivery is that
135.181.139.185 ip address showed up in the chain which is blocked by them. On investigation it belongs to
hetzner is just the datacenter where murena hosts its servers.
Standard procedure is forwarding the error-reply (that should contain full mail-headers the error mail quotes) to the postmaster address or any other means of contacting the helpdesk.
I had a similar problem with emails from my server and my domain. The fault was the missing ARC header. But I was able to solve this quickly by installing rspamd.
