SNI support in `mail` context (fixed formatting)

[Chris Adams]

Once upon a time, Maxim Dounin <mdounin at mdounin.ru> said:
> Note though that in general there is no concept of name-based 
> virtual hosts in mail protocols, and using name-based virtual 
> hosts for SSL might not be a good idea either.  Also, status of 
> SNI support by email clients varies, and "unknown" in most cases 
> (https://en.wikipedia.org/wiki/Comparison_of_email_clients).

I'm pretty sure that list is out of date - I have Dovecot handling
POP/IMAP for a bunch of domains with SNI and no user complaints.  I'd
lean towards the SNI column being ? because it's just not being checked.

-- 
Chris Adams <linux at cmadams.net>