TLS/SSL failure

[advoenkin]

Hello, i have a problem with email fetching.

I got error: imap_open(): Couldn't open stream {ran-crypto.tech:143/imap/novalidate-cert}. TLS/SSL failure for ran-crypto.tech: SSL negotiation failed

My mail server user STARTTLS encryption.

[freescout-helpdesk]

Try to change TLS to SSL or vice versa: https://stackoverflow.com/a/72376387

[advoenkin]

Try to change TLS to SSL or vice versa: https://stackoverflow.com/a/72376387

I tried all variations, and even None including. It did not help.

[freescout-helpdesk]

Try the following and let us know the results:

1. Update FreeScout to the latest version.
2. Extract Mail.php from the archive and copy to /app/Misc replacing existing Mail.php
3. Check IMAP connection.

[freescout-helpdesk]

Closing for no activlity.

[freescout-helpdesk]

Solution:

Add the following to .env file and clear cache:

APP_NEW_FETCHING_LIBRARY=true

[dwishaventures]

I am running Freescount behind traefik proxy. Outgoing email works using SMTP with SSL but incoming mail wont work. Connection failure. Whatever suggested here is already tried. How to troubleshoot ? or where should I start looking for problem.