Thanks everyone. We seem to have a winner :-)

I'm looking for a new provider after a profoundly unsatisfying support experience from 123 Reg after they bought out Supanames.

My POP3 email collection was failing on a works-one-time-in-five basis. I made clear I was using Linux and included server settings, asking them to verify they were still valid after the migration. I received a very short response telling me to check my server settings and including a document about how to configure IMAP on Outlook.

Ask the best,
Paul

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Sent from my Android phone with K-9 Mail. Please excuse my brevity.