A IMAP account already exists. Only a single IMAP account is allowed to be saved.
I'm trying to update a mail account on my MacBook Pro and all of the Account Information and Server Settings are the exact same as they are on my iMac, but every time I tried to save the changes I received the following message:
A IMAP account already exists. Only a single IMAP account is allowed to be saved.
I have checked in the Communities for solutions and have already edited the User Name in the SMTP Server List that was associated with another account and have also deleted a previous account that was using the same email address under Internet Accounts in System Preferences.
Once I had everything the same as it is on my iMac for this account and tried to save the changes again, I then received the following message:
Unable to verify account name or password.
Does anyone have any suggestions as to how to fix this issue?
Thanks
MacBook Pro 15″, macOS 10.15