OK, email up the spout again, nothing new - but...
I've just logged onto my Webmail account, and there are three messages there. This morning, there were approximately 350!!
I'm hoping the missing ones will come back when the problems have been fixed - but this happened to me a couple of years ago, fewer emails involved, but they were lost permanently.
Any ideas? Other than 'find a new ISP' which is what I'll certainly be doing if the emails are gone forever