Emails not sending

I keep trying to send emails with and without using templates and they are not sending. They just disappear. Draft is gone and email not sent

Not clear on one or two specifics? Are we talking about broadcasts or campaign emails? Also, by the draft is gone statement, I might question if it was ever set into the ready state (which is what would make it a draft and not ready)?

I am having the same issue, I think. I compose an email in the contact record and then click Send. Go the contact record and it’s gone. Not showing that is was attempted and returned, just gone. This has happened 2 times now?