Guarantee delivery for critical messages
A password reset request sends email first. If the email bounces, SMS delivers within seconds. The customer resets their password regardless of which channel succeeds.
Broadcast to email and SMS in one call. Or set a priority order where failed channels automatically fall back to the next.
Omnichannel messaging
Customers check email once a day but respond to SMS in minutes. Some prefer detailed emails while others act faster on text messages. Multisend sends to all channels simultaneously or cascades through them until the message lands.

Capabilities
Send the same message to email and SMS in a single API call. Each channel receives content formatted for its medium.
Define a channel priority order. If the first channel fails or goes unread, the message automatically routes to the next channel in the sequence.
Route messages based on delivery status. Email bounce triggers SMS fallback. No open after a defined period escalates to the next channel. Each condition maps to an automatic switch.
Define separate templates for each channel. Email gets the full HTML layout while SMS receives a condensed 160-character version of the same notification.
Track exactly which channel delivered each message. See the full cascade path: email attempted, bounced, SMS sent, delivered. One unified timeline per recipient.
Compare channel performance in a single dashboard. Identify that SMS converts 3x better for appointment reminders while email works for weekly digests.
Compare channel performance in a single dashboard. Identify that SMS converts 3x better for appointment reminders while email works for weekly digests.
Using 2-channel cascade
Email and SMS
From failure detection to next channel
Why it matters
A password reset request sends email first. If the email bounces, SMS delivers within seconds. The customer resets their password regardless of which channel succeeds.
Appointment reminders send 24 hours ahead via email. If no confirmation within 4 hours, SMS follows up. 30 minutes before the appointment, a final SMS reminder sends if still unconfirmed.
Order confirmations start with email, which costs a fraction of SMS. Customers who have not opened email in 48 hours receive SMS as a fallback. Total messaging costs drop compared to SMS-only delivery.
Built for Your Workflow
Define a cascade of channels with automatic fallback. Multisend tries email first; if it bounces or fails, SMS sends within seconds. Delivery confirms through whichever channel succeeds.
Guarantee delivery of password resets and security alerts across unreliable channels.
Configure escalation rules based on time and engagement. Start with email 24 hours before an appointment; escalate to SMS 4 hours before if unopened; send a final SMS 30 minutes before if still unconfirmed.
Reduce missed appointments with timed escalation that matches urgency.
Route through email first and fall back to SMS only when email bounces or goes unopened for 48 hours. Reserve SMS budget for customers who need it.
Cut messaging costs significantly while maintaining delivery rates.
Send to all channels simultaneously with one API call. Email receives the full HTML template; SMS receives a condensed version. Both send in parallel.
Launch omnichannel campaigns without writing separate integration code per channel.
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