Why do our email addresses keep going to the bounce list?

We are having notification problems.  Our notification email addresses keep sorting into your bounce list.  Every time either we or Jotform remove them, they pop back up on there.  Is there a way to permanently remove our email addresses from the bounce list so we don't have to keep doing this every week?

Addresses are placed on our bounce list due to rejecting emails.  This can be due to spam filtering, blocking our sending IP's or even if the inbox is full.

To ensure your email provider is not blocking the emails, you can have them whitelist our sending IP's:

https://www.jotform.com/help/145-Whitelisting-JotMails-IP-Addresses

Or you can send the notifications from your own address via SMTP:

https://www.jotform.com/help/244-How-to-Setup-SMTP-for-a-Form