SSLv3 error after update

  • Used Zammad version: 4.1.0
  • Used Zammad installation type: package
  • Operating system: Ubuntu 20.4
  • Browser + version: Google Chrome Version 89.0.4389.82

Expected behavior:

  • Inbound emails beeing picked up by zammad via imap and SSL/TLS on Port 993

Actual behavior:

  • Can’t use Channel::Driver::imap: #<OpenSSL::SSL::SSLError: SSL_connect SYSCALL returned=5 errno=0 state=SSLv3/TLS write client hello>

Steps to reproduce the behavior:

  • show up Email settings

You did just update Zammad or possibly even your system?
Please ensure that your mail server does support the ciphers the operation system of your Zammad installation supports.

I updatet Zammad and system with no success.
When I update only Zammad it works, the system is Ubuntu 18.04.

So I suppose you did upgrade your OS.
In that case you’ll have to ensure that your mail server does support the Ciphers. This is technically not a Zammad issue but an issue with your mail server and OS.

When upgrading distributions (and sometimes openssl versions) sometimes ciphers are dropped for security reasons.

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