Not consistently receiving email

Not consistently receiving email

For the last hour I have not received any email sent to my Zoho Email account.  It was working earlier, though.

What is this about?   I'm just starting to convert over from Gmail, and now I'm wondering if Zoho Mail is stable yet.  Story?

Thanks.

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AN UPDATE:
Though I'd clicked on Fetch Mail numerous times and not seen the missing email in my Inbox, when I clicked on the Sent folder and then returned to the Inbox all the missing mail was there as it should have been.  There's something wrong w/ the Inbox getting refreshed it seems.