Would somebody venture a guess as to what can be wrong when I have created four e-mail accounts (four different email addresses), set them up exactly the same, and two work and two do not?

I removed and recreated one of the non-working email accounts today, but no cigar. It just do not received emails. I can send email from it. Nothing shows up in the Outlook Data File. I manage to import the iCloud calendar, but I cannot get the Contacts from my Outlook.com account to Outlook on my computer.

A hint, a comment, a guess? Anything! What am I doing wrong, what can I do to fix this?

Regards,

Rifke