Two things before we continue:
- If using docker, please use our docker-compose - the docker image is not production safe
(mentioned here: Install with Docker — Zammad documentation )
- Zammad 3.7 currently is
develop, this means it may unstable - you may want to switch to
Please ensure that your Zammad host / node supports the same SSL/TLS protocols and ciphers like your mail server does. Above error usually indicates the mail server not supporting what Zammad does.
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