China Public Cloud 2018 Comparison
This artcile is the guide to show you how to run a clean mail system and avoid being blocked.
- SMTP Authentication is required
- Correctly configure DNS records for your domains
- No more 15-20 simultaneous receipients of a single Email
- Do not try to use your mail server as a list server
For further information, please see the Full Article How to Avoid Email Server Blacklisting.