Thanks for all the replies. Today I re-booted again and all the mailboxes are there!! Don't know what happened but all is well and I have deleted my many emails, thank goodness.
Thanks.
Thanks I did mean the iOS5 upgrade. I have tried both of the above but it hasn't made any difference. I can still only access inbox, gmail account, and iCloud
. Thanks for your interest.
Since the upgrade I can only access "inbox" I cannot organise my mail, get to the trash box to empty it or get to my saved messages in personal etc.
Please can anyone help?