Hi, @Malcolm7 welcome to the community and thanks for posting, if the emails aren't on webmail it means they're no longer on the BT servers. As they are on your Android email app has that been set up to download the email and leave a copy on the server?
Very odd what is going on. Now all emails on both android app and browsers, but your email only on android. Subsequent emails on both. Seems to be working just. I am happy to work as i