Very simple sms bomber written in java.
If you have no idea what an smtp server is, and you're not using gmail, check this link: https://www.arclab.com/en/kb/email/list-of-smtp-and-pop3-servers-mailserver-list.html
You'll notice that you need the target email address. Here is a cool website:
http://freecarrierlookup.com
Type in number, and it will resolve it to an mms email that you can paste in config
You must have support for "less secure apps" set to "turn on" on your Gmail. Here is the link to do so: https://www.google.com/settings/security/lesssecureapps