As continuation of our security hardening practices, we will be officially ending the ability to use plaintext authentication for email services. This change should impact less then 1% of our customer base still utilizing these legacy features. It is recommended to review the following changes to ensure your services will not be impacted.
A detailed breakdown of the changes is as follows:
Incoming e-mail
- Plaintext authentication for POP3 and IMAP will be disabled.
- Connections to the servers on ports 110 and 143 will not be allowed.
Outgoing e-mail
- E-mail clients will be required to connect with SSL/TLS before being allowed to authenticate.
As a result, please review your mail clients for the following settings, adjusting as required:
Incoming Server: rs21.websitehostserver.net
IMAP Port: 993 or POP3 Port: 995
Outgoing Server: rs21.websitehostserver.net
SMTP Port: 465
SMTP Authentication = On
SSL: Enabled
NOTE: Authentication is required for IMAP, POP3, and SMTP.
These changes will take effect on: September 8, 2017 from 2:00 A.M -- 3:00 A.M EST.