mail.resend.message.form mail.resend.message

Select the action to do on each mail and correct the email address if needed. The modified address will be saved on the corresponding contact.
mail.resend.cancel.form mail.resend.cancel

If you want to re-send them, click Cancel now, then click on the notification and review them one by one by clicking on the red envelope next to each message.

Envelope Example
Resend mail mail.resend.message ir.actions.act_window form form new Discard mail delivery failures mail.resend.cancel ir.actions.act_window form form new