Add multiple ColdSend native inboxes
Bulk create ColdSend managed email inboxes
Create multiple email inboxes in a single request (max 100). Useful for setting up multiple sending addresses for different purposes.
Important Notes
- All inboxes must be on the same domain
- This is an async operation — inboxes are created via background tasks
- The response includes a
job_idandprogress_urlfor tracking - Poll
GET /sender-accounts/coldsend-native/bulk/{job_id}/progressfor real-time results - The initial response will always have
success_count: 0,results: [] - Maximum of 100 inboxes per request
Authorizations
API key with format cs_live_xxx
Body
Response
Bulk creation initiated successfully
Response for bulk ColdSend inbox creation.
This is an async operation. Inboxes are created via background tasks.
The success_count, failed_count, and results fields will
always be zero/empty in this response — poll the progress endpoint
to get real-time results.
Unique job ID for tracking creation progress
Domain ID
Domain name
Total inboxes in request
URL to poll for creation progress
Always 0 in initial response — poll progress endpoint for results
Always 0 in initial response — poll progress endpoint for results
Always 0 in initial response — poll progress endpoint for results
Always empty in initial response — poll progress endpoint for per-inbox results

