I have a @btinternet.com email address and use the yahoo mail app which I really like . I’ve seen that BT mail won’t be supporting this app anymore and have told people not to use it. Is there any pans for a dedicated BT mail app?
There has been nothing announced but that's not say there won't be one in the future. BT tend to just bring things out rather than announce them ahead of hitting the market.
Meanwhile there are loads of email apps available that can be used with BT email.
See link for the settings you will need to use when setting one up.