SSL_connect returned=1 errno=0 state=error: unsupported protocol

Technical assistance
1

Infos:

  • Used Zammad version: 5.2.2
  • Used Zammad installation type: package, docker-compose
  • Operating system: Ubuntu 20.04
  • Browser + version: Chrome

Expected behavior:

  • When setting up an outgoing email, no error should be thrown and the email should be added.

Actual behavior:

  • The error: “SSL_connect returned=1 errno=0 state=error: unsupported protocol” is shown right after inserting the data for the email setup. Works on Zammad.com (The 30 days free trial verison) with the same settings and no problems at all.

Steps to reproduce the behavior:

  • Follow the tutorial for Docker. Open up localhost:8080. Try to set up an outgoing email.
2

Unsupported protocol indicated that the available Ciphers on your host system do not match those available on your mail server.

Usually this is either the mail server using terribly old SSL-Versions which the host (no longer) supports or the other way around.

3

try to use ldap://IP instead of ldaps://IP

4

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