Recall email from GMX?

Should a premium function be, even not tried (similar to the “time-delayed to send”), youtube-tutorials sense da vlt useful to see through?

Unsended (but timeout with logout or web connection crashed, etc.) they land in the “design” folder.

To retrieve as a basic profile, I do not think that it may be unreadable (unproven only theoretically thought) to delete the mail profile, then it is no longer usable, but all the mails and address book is now empty, however, whether the opposite mails could open unexisting profiles? Know only when sending, come a gmx daemon or something, as error title/transmitter.