SSLv3 error after update

Technical assistance
1
  • 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
2

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.

3

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

4

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.

5

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