Compare
PostMTA Hosted vs SendGrid
Dedicated infrastructure with full DNS/IP control — not a shared Twilio meter with marketing bundle upsell.
| Capability | PostMTA Hosted | SendGrid |
|---|---|---|
| Infrastructure | Dedicated appliance / your VPC | Shared multi-tenant cloud |
| IP pools | Your IPs, your warmup | Shared or paid dedicated tier |
| Compliance | Attestation matrix you own | Vendor SOC2 story only |
| Pricing | Enterprise by request | Public tiers + overages |
| Data residency | On your metal or our single-tenant | Twilio-controlled regions |
Where PMH is the wrong choice
If you already have deep operational muscle with SendGrid, do not rip and replace for the sake of it. PostMTA Hosted shines when the buyer needs managed control plane + smoke gates + verified From defaults. For pure send-and-forget transactional already covered by your incumbent, stay.
Migration timeline
- Week 1 — appliance bring-up + smoke-prod green.
- Week 2 — verified domains + credits ledger seeded.
- Week 3 — phased traffic at 1%, 10%, 50%, 100%.
- Week 4 — decommission SendGrid.
Operators: see docs/getting-startedand docs/operate/PRODUCTION for the appliance runbook.