Email SSL/TLS error
4.5
The secure connection cannot be established due to a certificate or protocol issue.
Symptoms
- "Certificate invalid"
- "Secure connection failed"
- Red padlock icon
Possible Causes
- Wrong date/time on PC
- Outdated OS
- Self-signed certificate
Step-by-Step Fix
1
Sync System Clock
If your PC date is wrong, SSL certificates will appear expired.
2
Update Windows/Mac
Older operating systems lack the "Root Certificates" needed for modern SSL.
3
Change Encryption Type
Switch between "SSL/TLS" and "STARTTLS" in account settings.
When to See a Technician
If your computer thinks it is the year 2000, it will reject all modern security certificates.
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