Running V12.0.0, Windows 10.0.19045 Build 19045, Vara 4.8.9
Upon configuring the new incoming mail gateway confirmation, IMAP Test consistently fails. SMTP and IMAP configurations both are using the same password (with spaces). SMTP Send Test Email succeeds, IMAP Test fails.

From the VarAC.log, the following message is typical.
"06/07/2025 13:33:18 - SHUTTING DOWN EMAIL GATEWAY. Too many retries (exceeded limit of 5 retries)
06/07/2025 13:34:19 - Email gateway error: Unable to receive email from IMAP server. An error occurred while attempting to establish an SSL or TLS connection.
The server's SSL certificate could not be validated for the following reasons:
• The server certificate has the following errors:
• The revocation function was unable to check revocation for the certificate."
I am running Norton 360 AV.
I tried the following, and the error condition remained.
Disabled "Safe Web" completely.
Disabled "HTTPS Scanning" completely.
Added website exclusions for http & https imap.gmail.com and smtp.gmail.com.
Disabled AV Auto-Protect
Disabled Smart Firewall
I then selectively disabled "Scan inbound emails (POP3, IMAP4)" and the "IMAP TEST" yielded a "Succes ..." message.
KE8PLM