Configuration

IP Pools

IP Pools let you isolate traffic onto dedicated IP addresses with full reputation control.

Dedicated IPs vs Shared IPs

	Shared IP	Dedicated IP
Cost	Included	From $20/IP/month
Reputation	Pooled with all customers	Owned by you alone
Warm-up	Pre-warmed by PostMTA	You control the schedule

Create a Pool

curl -X POST https://api.postmta.com/v1/ip-pools -H "Authorization: Bearer pmta_live_xxxx" -H "Content-Type: application/json" -d '{"name":"transactional","description":"High-priority transactional emails"}'

IP Warm-Up

Never send high volume immediately on a new dedicated IP. Sudden spikes trigger spam filter blocks. Follow the warm-up schedule.

curl -X POST https://api.postmta.com/v1/ip-pools/transactional/warmup -H "Authorization: Bearer pmta_live_xxxx" -H "Content-Type: application/json" -d '{"ip":"100.96.12.4","schedule":"postmta_standard"}'

Built-in schedules:

Schedule	Duration	Ramp Profile
`postmta_conservative`	8 weeks	50 to 50,000/day
`postmta_standard`	4 weeks	50 to 200,000/day
`postmta_aggressive`	2 weeks	200 to 500,000/day

Reputation Monitoring

Each IP is monitored for Sender Score (ReturnPath), SNDS (Microsoft), Google Postmaster Tools reputation, bounce rate, and complaint rate.

Routing Messages to a Pool

{"from":{"address":"hello@shop.example.com"},"to":[{"address":"alice@example.com"}],"subject":"Your order","html":"...","ip_pool":"transactional"}