
Postmark
7.6#2 in email deliverability softwareFree planFree planWebAPI
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| Fact | Postmark | Valimail Monitor |
|---|---|---|
| Founded | 2010 | 2015 |
| Security | Postmark supports TLS and HTTPS, DKIM, SPF, DMARC, two-factor authentication, API permission controls, penetration testing, and DDoS protection. | The pricing comparison lists SOC 2 Type 2 certification and user-level multi-factor authentication for the free plan. |
Postmark suits developers who need to send application email through an API or SMTP and track delivery events. Its inbound processing and message streams also suit services handling both incoming and different types of outgoing email.
Monitor suits organizations that want visibility into domain DMARC results and sending services. It is not suited to customers seeking tools to manage DMARC policy or configure SPF and DKIM senders.