Cannot find how these can be recoverd Can you help pleas?
First of all have you checked all your devices to see if the emails are in any of their delete box and also have you checked in your BTMail account's trash folder.
You should also have a read of this thread and in particular message 6 from the moderator.
Re: Disappearance of all Sent emails prior to 12 A... - BT Community
No they are not in Trash but many thanks for your comments Distinguished Sage