Head-to-Head Specification Audit
Postmark vs Doximity
SaaS Developers · Global
Healthcare Software
Doximity
Physician Professional Network & Telemedicine · United States
Visit Doximity →Specification Matrix
| Metric | Postmark | Doximity |
|---|---|---|
| Starting Price | $15/mo | $0/moBetter |
| API Rate Limit | Not confirmed | 120 req/min |
| Target Country | Global | United States |
| Category | Email API | Healthcare Software |
| Compliance (vendor-stated) | GDPR, SOC2 | HIPAA, SOC2 |
| Hosting Regions | US-East, EU-West | US-East, US-West |
| Native Integrations | 6 listedBetter | 5 listed |
Postmark — Key Specs
Vendor-stated- ✓Average delivery time of 3.2 seconds — fastest transactional delivery benchmarked
- ✓Message Streams separate transactional from bulk email — protects domain reputation
- ✓GDPR-compliant EU-only sending available for EU data residency requirements
- ✓10-year email storage and retrieval via Message Retention add-on
Doximity — Key Specs
Vendor-stated- ✓Largest physician network in US (80%+ of US physicians)
- ✓HIPAA-compliant telemedicine and secure messaging free for physicians
- ✓AI Drafts feature — generates patient messages from bullet points
- ✓Epic/Cerner integration for scheduling
Frequently Asked Questions
Which is lower-priced, Postmark or Doximity?+
Doximity starts at Free plan available, which is lower than Postmark at $15/mo. Verify current pricing on each vendor's website.
Which compliance frameworks do Postmark and Doximity list?+
Both list SOC2 in their vendor documentation. Postmark additionally lists GDPR. Doximity additionally lists HIPAA. These are vendor-stated frameworks. VektorIndex has not independently audited these claims.
Which has a higher documented API rate limit — Postmark or Doximity?+
Available information does not support a direct comparison of API rate limits for these tools. Check each vendor's developer documentation.
Which data hosting regions do Postmark and Doximity support?+
Postmark lists hosting regions: US-East, EU-West. Doximity lists hosting regions: US-East, US-West. For data residency requirements in Global, confirm exact region configuration directly with each vendor.
Data last updated: 29 August 2026 — Sourced from official vendor documentation. Not independently audited. Report incorrect information
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