Never mind, my bad :( I copied the email address in the to field, normally this would be converted to an actual email, in the 3 version it doesn't and you need to press enter or tab after the copy, clicking with the mouse on the subject field does not change the copied (or typed in email) into a recognized email.
still room for improvement I guess :) -- users@sogo.nu https://inverse.ca/sogo/lists
