- Plesk for Linux
Mails are not sent to some specific addresses.
There are the following error messages in the
CONFIG_TEXT: ME-IXXXX: [0A9BDE4490704C08A66604721DC0C96B.MAI] Remote server returned a response indicating a temporary failure. Server Response: (450 4.7.1 Client host rejected: cannot find your reverse hostname, [203.0.113.2])
CONFIG_TEXT: Reason: Remote SMTP Server Returned: 550 5.7.0 Your server IP address [203.0.113.2] is missing a reverse DNS entry
Reverse DNS zone for the affected IP address and domain does not exist.
Reverse DNS records should be created by the owner of the IP address. Usually, it is a Hosting service provider or Internet Service Provider (ISP). Contact IP address provider and request to create reverse DNS zone for affected IP address and domain.