Communications
Send email, SMS, log calls, and manage conversation threading. Includes templates, unified inbox, and inbound message handling.
Email & SMS
Send via Twilio/SendGrid
Call logging
Log calls and recordings
Conversations
Thread and unified inbox
Engagement Tracking
Open pixels and click tracking
Email Accounts
Connect Gmail, Outlook, IMAP
Bounce Handling
Bounce and complaint webhooks
Send Email
Body Parameters
| Parameter | Type | Description |
|---|---|---|
toreq | string | Recipient email |
subjectreq | string | Email subject |
body | string | Plain text or HTML body |
templateId | string | Template ID (alternative to body) |
templateData | object | Template variables |
leadId | string | Associated lead ID |
opportunityId | string | Associated opportunity ID |
POST https://api.leadron.io/v1/communications/send/email
X-API-Key: ldr_live_sk_a1b2c3d4e5f6g7h8i9j0
Content-Type: application/json{
"to": "jane@example.com",
"subject": "Follow up",
"body": "Hi Jane, following up on our call...",
"leadId": "6789abcdef012345"
}{
"success": true,
"status": 200,
"data": {
"id": "msg_001",
"to": "jane@example.com",
"status": "sent",
"createdAt": "2026-02-08T14:30:00.000Z"
},
"meta": {
"timestamp": "2026-02-08T14:30:00.000Z",
"version": "v1"
}
}Send SMS
Inbox
Preferences
Templates
Call Logging
Conversations
Inbound Webhook
Email Tracking
Public endpoints used by email clients to track opens (via a 1x1 transparent pixel) and link clicks (via 302 redirects). These endpoints require no authentication and are automatically embedded in outgoing emails when a leadId is provided.
Info
Track Open
Track Click
Bounce Webhook
Email Accounts
Connect external email providers (Gmail, Outlook, IMAP/SMTP) to the platform. Once connected, users can view their inbox, send and reply to emails, and the platform monitors inboxes for lead-related email activity at scale.