Flakey but essential solution

Someone suggested that we use another email provider but I’m very happy with Zoho Mail otherwise.

Also, the developer met with me online to solve my initial problems.

However, the plugin periodically stops working with no warning. I fix it by deleting the credentials and reauthorizing. That seems to fix it.

Make sure you delete the credentials first. Then add them again and then authorize again.

Simply reauthorizing doesn’t seem to work.