Each week lately it seems my email address is getting put on the block list.

Why is this and why has it started now. Nothing has changed and this is affecting my business terribly.

Hey datapro1,

Although this issue is related to email servers, you can perform couple actions that are explained in the following pages in order to prevent recurrence of entrying block list.

https://www.jotform.com/help/208-How-to-Prevent-Email-Bouncing-Related-Issues

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

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

https://www.jotform.com/help/262-How-to-Remove-Your-Email-Address-from-Bounce-List

Sorry for the inconvenience and thank you for writing us.

Have a nice day.