UPDATE - I just checked out mu rules again...........
I had the most stupid rule setup. It was so broad i can't believe i actually got any mail in my mailbox. Added to that it was moving it to the folder described earlier.
Thanks for giving me a kick in the right direction Diane.
Thanks for taking the time to respond.
I have rules to move some mail. For example mail from my wife goes into a folder but this seems to be a random thing that some mail being delivered to Inbox and some not.
They're not visible in Outlook today no.
I really hope someone can help me with this issue. I've had an Outlook.com (previously Hotmail) account for many years. Quite recently i started to notice i that couldn't see emails that people had sent to me in my inbox. On doing a search i could find the email but i would still be unable...