GMAIL SMTP Error Pop-up


I keep getting an annoying pop-up with some SMTP error. Whatever I do it keeps popping up - How do I resolve this issue?

Are you saying the error “pops up” but you are still able to send email?
What are your eMC SMTP settings?
Any errors in the Operations|LOG tab?

Yes - I think the email still works.

Settings are below:
Port: 587
Security Policy: Force usage of SSL/TLS

This is the error message in the log

Typically this is because something is interfering with the connection. As a test, can you completely disable any anti-virus, firewall, proxy or VPN, then try send again. Sometimes even restarting your router may resolve this.