> On 10/04/2021 01:00 Rowan @ Jetboy <rowan at jetboy.co.uk> wrote:
>
>
> I've setup Postfix to Dovecot LMTP delivery with mandatory TLS. Emails
> are being delivered with TLSv1.3 with no errors. However, setting:
>
> verbose_ssl = yes
>
> exposes this on each connection:
>
> lmtp(405619): Debug: SSL_get_servername() failed
>
> What it this mean, and what should I do about it?
It means client did not request any particular servername. That is not an error,
it's a debug message. You can try configure postfix to use DNS name instead
of IP, but that said, this message is harmless and can be ignored.
Aki