Outlook vs Thunderbird

[Alexander Dalloz]

Am 07.07.2020 um 08:07 schrieb Mark Constable:
> 
> FWIW I meant if the client is Windows7/old-Outlook then changing either
> 993/SSL or 143/STARTTLS to 143/NONE could help pick up the mail. We had
> to do this for a 100 or so clients a few months ago after upgrading to
> Ubuntu 20.04.

Curious, what's the rationale behind that move? Is it because that old 
beast of Outlook does not have the capabilities modern TLS/STARTTLS 
implementations require regarding TLS minimal version and ciphers?

But plaintext auth for mail access, seriously?

Alexander