There are plenty of options out there for sending encrypted email which can be opened by the recipient via a web portal. That’s commonly used in HIPAA compliant communication. eM Client has/had a feature where you could simply uncheck one of the protocols for the account in question - be it IMAP, or SMTP. That makes it usable. As it is right now your software refuses to send email from an account with an IMAP error although SMTP details are valid.
There’s no way to ignore an account when checking for new mail either, which is a feature I’ve seen in a few prominent clients.
It would be extremely awesome if you were able to implement single-protocol email accounts to be used as either storage/organization (IMAP vs local mailboxes for availability) or for encrypted email sending (you only send, you don’t save sent mail to Sent folder, no IMAP needed).
Thanks!
(Originally posted by working-name on GitHub.)