HighDrive, in working with the Apple Experts:
1. You should have the option in the info section to block the email. If not, you can save the email address as a contact, and then block it. This article will help for either option: Block phone numbers and contacts on your iPhone, iPad, or iPod touch - Apple Support
2. You can also just hide alerts from this email. This article talks about this in the section titled "Turn on Hide alerts" Use Messages on your iPhone, iPad, or iPod touch - Apple Support
With our Verizon support, you can block emails & domains: Stop email addresses, domains and text names sent by the web. Here are the only options we have to offer at this time: https://www.verizon.com/support/block-unblock-services-faqs/
you cannot forward the text that originates as an email address.....what are the options to stop this kind of group texts from emails and sent to 20 phone numbers at a time?
beckster46, I understand these type messages can be annoying as I get them myself. To learn the blocking options we have available visit https://www.verizon.com/support/block-unblock-services-faqs/