make it possible for K9 mail client to auto config @murena.io
At the moment the server URL for IMAP and SMTP is mail.ecloud.global
However when you enter a @murena.io address in the mail client K9 mail for Android it will try to connect to imap.murena.io and smtp.murena.io This will fail and you'll have to enter the server URL manually, something that is NOT feasible by a beginner.
I suggest you find a way to make auto-config of email account succeed in those email clients where it fails. (No issue with Thunderbird : works fine)
Like having a redirection or - if mail clients rely on information in a database : add the server URL in these databases.
(tested with K9 mail installed from Google Play Store on january 28, 2023 ; K9 version : nov.22,2023)