This is a weird one. There is an IMAP email account I own, and I have the IMAP and SMTP configuration information for it.
It’s just like another account I have at the same service.
I am able to access the email via the web. And I was able to configure the email account on my Mac in Mail.app just fine.
But when I try to set up that account in Mail on my iPhone it says it can’t authenticate, asks me if I want to try non-secure (I really would rather not, but tried it anyway, didn’t work).
Is there a way to just sync all the accounts in Mail on my Mac via iCloud to my iPhone maybe? I don’t have to enable them all, but maybe syncing them would be easier?