If you or someone else sending to you are receiving a bounce back message it could mean many things.
The first thing to always check is that they are typing the email address in correctly. It may sound simple, but it is one of the most common issues. Even a capital letter could cause a bounce back message to occur.
If the message keeps occurring please submit a ticket or contact our tech support department and provide them with the error. We can review the issue and see what is causing it and assist you with fixing it.