SMS :: Bulk Messaging is the dissemination of large numbers of SMS messages for delivery to mobile phone terminals. It is used by media companies, enterprises, banks (for marketing ) and consumer brands for a variety of purposes including entertainment, enterprise and mobile marketing. Bulk messaging is commonly used for alerts, reminders, marketing but also for information and communication between both staff and customers. Bulk messaging lets you deliver SMS messages to mobile handsets almost anywhere in the world.
MAILER :: Bulk email software is software that is used to send email in large quantities. It is generally used for legitimate mailings, such as for email list subscribers. Since the bulk email software usually sends email via direct send and via SMTP server, the use of a bulk email software for spam is almost impossible, because of the large amount of emails that are sent in a spam campaign. Bulk email software usually refers to a standalone software, while there are bulk email sending web-based services as well.