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Web Help Desk is unable to connect to the incoming email account after enabling TLS 1.3
This article describes the issue of Web Help Desk unable to connect to the incoming email account after enabling TLS 1.3
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Overview
After enabling TLS 1.3 on the email server, Web Help Desk can no longer connect to it. Upon checking the logs, the following error shows:
WARN [2020-0]<https-jsse-nio-443-exec-6> Unable to establish connection: javax.mail.MessagingException: No login methods supported!; nested exception is: com.sun.mail.iap.ProtocolException: No login methods supported! javax.mail.MessagingException: No login methods supported!; nested exception is: com.sun.mail.iap.ProtocolException: No login methods supported!
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Cause
Resolution
Disable TLS 1.3 in the mail email server and use TLS 1.2