@takridge,
Thank you for reaching out and welcome to the community. The issue you are experiencing can happen from time to time when the server experiences an issue. This does not affect all customers but it can be a repeat problem for some. Our engineers are aware of this and have made progress reducing the amount of times this happens. Eventually, it will not happen at all. My best recommendation is to use a different email service for the time being. Email receiving will return to normal shortly if it hasn't already. You shouldn't need to change any server settings as the error message can also represent a general issue.
In regard to switching to another provider, we respect your decision if your needs no longer match what our service can provide.
-Damian
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