SMS
E-mail has the advantage over SMS by being able to send a large amount of contents; however, SMS has the advantage of being instantaneous and checked more often.
Therefore, using a mix of SMS and e-mail for the purpose of marketing will help increase and better the marketing outcome.
For instance, if you provide education service or deadline alarms, giving out event coupons will receive immediate responses when sent through mail and SMS.
ThunderMail provides a function to utilize SMS along with mail after linking up with a customer’s existing (or new) SMS module.