ProRedLine is rolling out a security upgrade to our mail environment. To keep your accounts aligned with modern security standards, we are enforcing a stricter mail authentication security policy. As a result, some (older) mailbox credentials must be updated once.

Deadline: March 12, 2026
After this date, mailboxes still using the legacy password format may temporarily lose access until the password has been updated.

Which accounts are affected? #

This action applies only to individual accounts inside your cPanel account, such as:

• Email mailboxes (Email Accounts)
• Any separate CalDAV (calendar) accounts
• Any separate CardDAV (contacts) accounts
• Any separate WebDAV (Web Disk) accounts

Your cPanel login password does not need to be changed.

Calendar, contacts & WebDAV #

• If you use your email mailbox password for calendar/contacts and/or WebDAV as well (meaning you do not have separate CalDAV/CardDAV/WebDAV accounts):
  • Updating the email mailbox password is sufficient.
• If you do have separate CalDAV (calendar), CardDAV (contacts), and/or WebDAV (Web Disk) accounts created in cPanel:
  • Those accounts must be updated too.

How to update your password in cPanel #

1. Log in to cPanel via your own domain, for example: https://cpanel.proredline.com
2. Go to: Email ⇒ Email Accounts
3. Click Manage next to the mailbox/account
4. Set a new password under New Password
5. Click the blue button at the bottom: Update Email Settings
6. Recommended: update the password in your email application (iPhone Mail / Outlook / Thunderbird) and confirm that login works

What if my mail app stops connecting after March 12, 2026? #

If an affected mailbox has not been updated by March 12, 2026, your email client may show an “incorrect password” or “cannot connect” message. This is resolved by:

1. updating the password in cPanel (steps above)
2. entering the new password in your email app on all devices

Need help? #

Our support team can guide you through the steps. For privacy and security reasons, ProRedLine does not set or change customer passwords on your behalf.