What is Sendblue?

Sendblue (iMessage for Business) provides an iMessage API and messaging platform for conversational marketing, sales outreach, and customer support.

Features include iMessage API access, FaceTime Audio, support for voice memos, videos, and high-resolution photos, plus automatic fallback to RCS or SMS when iMessage is unavailable.

Workflow Builder, Smart Views, and Power Dialer enable automation, segmentation, and faster outreach for sales and support teams.

CRM and automation integrations and a Click-to-Dial Chrome extension let teams sync contacts, track interactions, and manage workflows from existing stacks.

The platform supports number porting and group messaging, enforces per-line contact limits to reduce spam, and does not support bulk message blasts to protect deliverability.

Compliance controls include SOC 2 Type II and HIPAA-ready security and built-in anti-spam mechanisms for regulated environments.

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Sendblue's key features

iMessage API access for sending iMessages
Automatic fallback delivery to RCS and SMS from the same phone number
Voice calling and FaceTime Audio from the same iMessage-enabled number
Workflow Builder for automation and personalized messaging
CRM integrations with Click-to-Dial Chrome extension and Power Dialer

Sendblue use cases

Run personalized conversational marketing campaigns over iMessage using rich media (images, videos, interactive buttons), automatic SMS/RCS fallback for non-iMessage users, automated drip flows and A/B testing, and track engagement with built-in analytics to optimize conversions
Enable HIPAA-compliant patient communication for healthcare providers by sending appointment reminders, secure document exchange and two-way follow-ups via iMessage with encryption, automatic SMS/RCS fallback, CRM integration for synchronized patient records and audit-ready compliance controls
Scale outbound sales outreach by integrating Sendblue with your CRM to power a sales power dialer and automated multichannel sequences—use templated rich messages, real-time conversation routing to reps, and messaging analytics reporting to measure pipeline impact and improve response rates