Head-to-Head Specification Audit
Postmark vs VNPT e-Invoice
SaaS Developers · Global
E-Invoicing Compliance
VNPT e-Invoice
Vietnamese Enterprises & State-Owned Companies · Vietnam
Visit VNPT e-Invoice →Specification Matrix
| Metric | Postmark | VNPT e-Invoice |
|---|---|---|
| Starting Price | $15/mo | $12/moBetter |
| API Rate Limit | Not confirmed | 120 req/min |
| Target Country | Global | Vietnam |
| Category | Email API | E-Invoicing Compliance |
| Compliance (vendor-stated) | GDPR, SOC2 | Vietnam E-Invoice Decree 70/2025, Vietnam Tax Administration Law |
| Hosting Regions | US-East, EU-West | VN-Hanoi |
| 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
VNPT e-Invoice — Key Specs
Vendor-stated- ✓State-backed by Vietnam Posts and Telecommunications Group (VNPT)
- ✓Trusted by government agencies and SOEs — preferred for public sector
- ✓Real-time GDT integration with high uptime SLA
- ✓Bulk invoice processing for high-volume businesses
- ✓Physical support offices across all 63 Vietnamese provinces
Frequently Asked Questions
Which is lower-priced, Postmark or VNPT e-Invoice?+
VNPT e-Invoice starts at $12/mo, which is lower than Postmark at $15/mo. Verify current pricing on each vendor's website.
Which compliance frameworks do Postmark and VNPT e-Invoice list?+
Postmark additionally lists GDPR, SOC2. VNPT e-Invoice additionally lists Vietnam E-Invoice Decree 70/2025, Vietnam Tax Administration Law. These are vendor-stated frameworks. VektorIndex has not independently audited these claims.
Which has a higher documented API rate limit — Postmark or VNPT e-Invoice?+
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 VNPT e-Invoice support?+
Postmark lists hosting regions: US-East, EU-West. VNPT e-Invoice lists hosting regions: VN-Hanoi. 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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