To ensure that you only receive secure messages, it is recommended to limit the arrival of emails to those coming exclusively from the Email Filtering Service servers.
This action will further enhance the security of your mail server by making it invisible to the outside world.
Here are the IP ranges to add to your firewall or mail server:
- 85.31.212.0/24
- 46.30.205.248/29
For any questions or inquiries, you can contact our support service at support@secuserve.com or open a request from your ticket management portal.