Mail repeatedly downloading the same message to "recovered messages" folder
This "Copying message" operation also blocks all other network operations, so I'm no longer receiving new mail and cannot examine online folders.
The character of the message in question is that it was generated by Sync Diagnostics and contains an attachment which is 27MB in size, hence the bandwidth hogging all night!
I've tried changing setting in Mail.app for the account in question - the various options to store messages on the server or not - and this had no effect.
I'm at a bit of a loss to be honest. Any tips would be greatly appreciated.
One last thing - I can read mail fine online in Safari and fine on both my iPhones.
Aluminium MacBook, Mac OS X (10.6)