I work at https://communityenergyengland.org (quite a long URL). And my name is Josef Davies-Coates (quite a long name).

When I enter my work email address into the box and it turns into a little blue lozenge, it cuts the end of the email off, making it look like I didn't type it in in full (I did) and just shows up to @communityenergyengl without the and.org.

The full email address ought to be displayed, however long it is.