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FAQ: End of Life (EoL) for Legacy Email Clients
Effective April 4, 2026, our Endpoint data protection has officially ended support for several legacy email clients. Because these applications are no longer supported by their respective vendors, they have been removed from our backup and restore services.
This FAQ provides the information and technical steps required to transition your environment to supported clients.
General Information
1. What exactly is changing?
As of April 4, 2026, we have discontinued backup and restore services for the following legacy email applications:
Windows: Outlook Express, Lotus Notes
macOS: Outlook 2011, Postbox
2. Why are these email clients being discontinued?
These applications have reached their official End of Life (EoL) with their respective vendors. They no longer receive security patches or stability updates, making them incompatible with modern data protection standards.
3. Who is impacted by this change?
This change impacts any customer who currently has one or more of these affected clients selected within their Endpoints Profile configurations.
4. What happens if I do not update my configuration?
If an affected email client remains selected in a profile after April 4, 2026, email backup operations for that specific client may fail or cease to function entirely.
5. Can I still restore data that was backed up before April 4?
Yes. Existing backup snapshots for these legacy clients will remain available for restoration in accordance with your organization’s defined retention policy.
Identification and Remediation
6. How do I check if I am using an affected email client?
You can verify your current settings in the Endpoints Administrator Console:
Navigate to Profiles.
Review the Email Client settings within each active Endpoints Profile.
7. What actions must I take?
Administrators must manually update their Profiles to include a supported email client to ensure continued protection.
Supported Options:
Windows: Outlook (Optimized for Performance), Thunderbird
macOS: Outlook, Apple Mail, Thunderbird
Step-by-Step Configuration Guide
To update your email backup settings, follow these steps:
Access Profiles: Log in to the Endpoints console and select Profiles.
Select Profile: Click on the specific profile name to open the Profile Summary page.
Enter Edit Mode: Click the Edit button at the top right of the screen.
Navigate to Endpoints: Select Endpoints from the drop-down menu to open the Edit Profile window.
Select OS Tab: Go to the Laptop/Desktop tab and select the relevant Operating System (Windows or Mac).
Configure Email: Click the Email option from the left-hand folder menu.
Update Selection: In the Email Client to backup field, select a supported client from the dropdown menu:
For Windows: Select Thunderbird or Outlook - Optimized for Performance.
For Mac: Select Thunderbird, Apple Mail, or Outlook.
Save: Click Save to apply the changes to all users assigned to that profile.