On Thu, December 17, 2020 14:28, Wietse Venema wrote:
> Wietse Venema:
>
> Very likely, tls_wrappermode is turned on as it should be on port
> 465, which requires the client to speak first (no server greewting,
> no client EHLO and STARTTLS).
>
> Apparently, the client is configured to expect "port 578" server
> where a server speaks first and sends a greeting before the client
> sends EHLO and STARTTLS.
>
> Wietse
Did you mean port 587?
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