Option 1
Bulk Send Email
Do not recommend that we offer this method to customers as it is not throttle and therefore will pose risk to the system.
the word batch must be put in the subject line. The body must contain one line for each message destination and message - a space must separate the number and the message content.
Option 2
Send the email to bulk@smartmessagingservice.net
Add an attachment with the a CSV file containing a mobile destination address on each line. Or Destination Address and Message Content - separated by a comma.
You can also put the message and other tokens in the body of the email