If your mailbox has sent emails that are considered spam, your mailbox will be automatically disabled by the email service
We appreciate that this is inconvenient however it's for the protection for the email service as a whole.
If emails that you send out get marked as spam, our email server starts to get a bad reputation. This could result in our email server getting blacklisted and your regular outgoing mail getting marked as spam, which of course would have a direct effect on your company sending emails, along with the other 10,000+ mailboxes we provide.