Overview
What is Message Level Authentication?
The Message Level Authentication Thunderbird extension signs your sent messages with the Message Level Authentication Protocol
In depth
A closer look at Message Level Authentication
Message Level Authentication authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank
Verdict
Should you download Message Level Authentication?
Message Level Authentication runs on
Windows 9X/ME/2K/XP/2003/Windows 10/11
and is available under the
Freeware
license
— the installer is 257 KB.
We’ve catalogued it under
E-Mail Tools.
✓
Verified clean. Every Message Level Authentication build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
Sponsored
At a glance
Message Level Authentication specifications
- Last updated
- Nov 26, 2025
- License
- Freeware
- Operating system
- Windows 9X/ME/2K/XP/2003/Windows 10/11
- File size
- 257 KB
- Price
- Free
- Page views
- 480
Help fellow users decide. Share your experience with Message Level Authentication.