Suggestion: Improve Status check page by checking inbound port 995

As per subject — rationale: some services (cough cough Gmail) don’t support IMAP so need to use 995 for POP access to MiaB.

For some reason, the status page checks 993 (ie IMAP) but not 995 (POP) - so can still have a see of green (yippie all good!) on the status page but then setting up Gmail to retrieve emails doesn’t work …