Dovecot alternatives with good i18n support?

[David Bürgin]

PGNet Dev:
> On 11/22/20 6:59 AM, David Bürgin wrote:
> > I’m interested in exploring alternative IMAP servers that have good
> > support for internationalised email, such as support for SMTPUTF8, IDN
> > mail domains, Unicode local-part, etc. etc.
> > 
> > If you used to use Dovecot, and found an alternative that does such
> > things well, I would very much like to hear it.
> 
> "good support" is a rather fuzzy qualifier.  in general, it's sketchy.  here's a comparison list / sort on "IDN/UTF8",
> 
>   https://en.wikipedia.org/wiki/Comparison_of_mail_servers

Thank you for the pointers.

I’m only a casual user. I wanted to begin experimenting with
internationalised email envelopes, but I now realise that support is
poor and interest is low throughout the email universe.