Apple mail works but thunderbird unable to connect

[Alexander Dalloz]

Am 22.06.2020 um 18:19 schrieb Dshah:
> I am stuck on this issue for days, I am able to connect on my IMAP server
> using Apple mail client but thunderbird shows me this error: "improper
> command pipelining after EHLO"

That error indicates to me that you are connecting to the MTA and not 
dovecot.. EHLO ist from the SMTP command set.

Alexander