What happens when you release an email?

It depends on the status of the email. These are the possibilities:

Infomail, Spam, Virus

Status will stay as detained. The email will be delivered and a new entry will show up in the Email Live Tracking. This new entry will have the reason "Statusmail".

Delivered

If the customer uses archiving, these kinds of emails can be redelivered. Status will stay as delivered. The email will be delivered again, and a new entry will show up in the Email Live Tracking. This new entry will have the reason "Statusmail". For customers without archiving a later release of an already delivered email, is not possible.

Rejected

These emails cannot be released nor redelivered, because they were rejected either from us or from the destination server.