Move a SendGrid sending workflow to Sendar
Convert one Mail Send integration while preserving recipients, suppression rules and rollback.
Request mapping
SendGrid Mail Send uses personalizations and a content array. For a simple Sendar message, map the intended recipients to to, the sender to from, and the text/html content value to html. Review per-recipient customisation separately.
Move the workflow safely
Recreate templates and variable mappings rather than reusing SendGrid template IDs. Carry forward opt-outs and suppressions. Verify the callback signatures and event meanings your application relies on before switching traffic.
When is switching worthwhile?
Compare actual monthly volume, daily peaks, maintenance work and required capabilities. Sendar offers flat capped plans, a REST API, reusable templates and activity logs. A hard cap can stop sending when the allowance is reached; compare that trade-off with your existing plan. We do not assume Sendar is cheaper or better for every workload.
Pilot and rollback
Verify your sending domain without removing records used by existing senders. Send a small controlled workflow, check rendering and event handling, then move traffic gradually. Keep a routing switch back to the old integration. Never send the same production message through both providers.
Reviewed 2026-09-30. Official provider documentation