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Proton Mail "Protocol Error", Any clues what could this mean?
I have set up everything as Proton has instructed but when Authenticating Imap, "Protocol error" is returned as the result.

I don't know enough about this to know what to try next.

Thanks in advance for any assistance.
With all that encryption going on, perhaps Proton could work only with TB! Professional license, but not the Home license. This is just a wild guess though...
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