Postmark reliability, self-hosted
Postmark is loved for its transactional deliverability. CeyMail matches the developer ergonomics: a REST API, webhooks, message events: with the added benefit of running on hardware you control.
What you pay per year.
A visual of the annual math on the plans compared below. CeyMail is a flat license - Postmark bills by the volume, seat or dedicated IP.
Five reasons to pick CeyMail over Postmark.
No per-email pricing
Full inbound + mailbox support
AI screening + log analysis
Prometheus / Grafana metrics
CeyMail vs Postmark, side by side.
Postmark is purpose-built for transactional email and has earned its reputation for deliverability. CeyMail gives you the same deliverability discipline: DKIM, DMARC, bounce management, webhook events, with one structural difference: the infrastructure is yours. No per-email meter. No shared sending pools. No data leaving your servers.
| Capability | CeyMail | Postmark |
|---|---|---|
| Pricing | ||
| 50k emails/mo | $49 | $50 |
| 300k emails/mo | $49 | $300 |
| Dedicated IP | VPS IP | $50/mo |
| Capabilities | ||
| Transactional streams | ||
| Inbound parsing | ||
| IMAP mailboxes | ||
| Self-hosted | ||
Switching takes an afternoon.
- 1
Point your app at the SMTP submission port (587) with a mailbox credential. Same port, same protocol.
- 2
Update DNS per domain. CeyMail auto-generates and verifies SPF, DKIM, and DMARC records from the dashboard.
- 3
Replace the SDK import. CeyMail uses identical method signatures to the API you are already on.
The math.
- 50k emails/mo: $50
- 300k emails/mo: $300
- Dedicated IP: $50/mo
- Transactional streams
- Inbound parsing
- 50k emails/mo: $49
- 300k emails/mo: $49
- Dedicated IP: VPS IP
- Transactional streams
- Inbound parsing
- IMAP mailboxes
- Self-hosted
$2,770 saved per year.
Questions about moving from Postmark.
Will I match Postmark's inbox placement?+
Postmark's edge is a curated, transactional-only IP pool. Match it by keeping your CeyMail sending clean, warming your VPS IP, or routing through Postmark as a relay during warm-up.