When a contact unsubscribes from your email list or marks you as spam, you need to respect that instantly. Bounced emails pile up and waste sending budget. Contacts from a form signup are hot leads, but by the time someone manually adds them to a list, they've forgotten they signed up.

INBOX handles email marketing, and Mobile Message handles SMS. When a contact unsubscribes from INBOX, you can send SMS instead to stay in touch (they've only opted out of email, not SMS). When a new contact fills out a form on your website, SMS can reach them immediately with a confirmation or offer. These two channels working together mean no one slips through the cracks.

SMS and email work better together than either one alone. Some customers only check texts, others only check email. By adding SMS to INBOX, you reach more people and respond faster to the ones who care.