Postmark vs Zapier
Reliable transactional email with fast delivery
vs. The OG automation platform — 8,000+ app integrations + Zapier Copilot AI
Pricing tiers
Postmark
Free
100 emails/month forever. No credit card. Side projects and testing.
Free
Basic — 10k
10,000 emails/month. Overage $1.80/1k. Unlimited emails/day.
$15/mo
Pro — 10k
10,000 emails/month. Overage $1.30/1k. Inbound email + message streams.
$17/mo
Platform — 10k
10,000 emails/month. Overage $1.20/1k. Team collab, more domains.
$18/mo
Enterprise (>1.5M)
Custom for senders exceeding 1.5M/month.
Custom
Zapier
Free
100 tasks/month. Two-step Zaps. Zapier Copilot with daily limits. Unlimited Zaps, Tables, Interfaces.
Free
Professional
$19.99/month annual. Multi-step Zaps. Unlimited premium apps. Webhooks. Email + chat support. AI fields.
$20/mo
Team
$69/month annual. 25 users. Shared Zaps/folders. Shared connections. SAML SSO. Premier support.
$69/mo
Enterprise
Custom. Unlimited users, advanced admin, VPC peering, observability, TAM.
Custom
Free-tier quotas head-to-head
Comparing free on Postmark vs free on Zapier.
| Metric | Postmark | Zapier |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Postmark · 12 features
- Activity Search — Full-text search over sent messages for 45-365 days.
- Bounce Handling — Automatic hard/soft bounce detection + suppression management.
- Broadcast Messages — Via separate Broadcast Message Stream. Bulk sends with throttling.
- DKIM + SPF — One-click verification + auto-renewal of DKIM keys.
- Inbound Email — Route inbound emails to your webhook. Parse attachments, threads.
- Message Streams — Isolate transactional from marketing for separate deliverability reputation.
- Open + Click Tracking — Configurable at template or send level.
- Raw API Access — 100+ endpoints for bounces, servers, tags, templates, stats.
- Servers — Multi-tenant isolation: each "server" has its own API token + reputation.
- Templates — Mustachio template language with variables, alias + versioning.
- Transactional Send — Reliable API for password resets, receipts, notifications. Sub-10s delivery.
- Webhook Events — Delivery, bounce, spam complaint, open, click, subscription change.
Zapier · 18 features
- AI Actions — LLM-powered actions inside Zaps (summarize, extract, classify).
- Chatbots — AI chatbots that trigger Zaps.
- Code by Zapier — Run JS or Python inside a Zap step.
- Delays — Schedule step execution.
- Filters — Condition-based step skipping.
- Formatter — Data transforms (date, text, number, utilities).
- Paths — If/else branching inside Zaps.
- Premier Support — Team+ chat + email priority.
- SAML SSO — Team+ SAML authentication.
- Storage by Zapier — Simple key-value store across Zaps.
- Webhooks by Zapier — Custom HTTP triggers + actions.
- Zapier Agents — Autonomous AI agents with 8k+ app access.
- Zapier Canvas — Visual workflow diagrams for planning.
- Zapier Copilot — Build Zaps from natural-language description.
- Zapier Interfaces — No-code forms + pages + chatbots from Zaps.
- Zapier MCP — Bring 8k+ Zapier integrations to Claude + other MCP clients.
- Zapier Tables — No-code DB integrated with Zaps.
- Zaps (workflows) — Multi-step automations across apps.
Developer interfaces
| Kind | Postmark | Zapier |
|---|---|---|
| CLI | — | Zapier Platform CLI |
| SDK | postmark-dotnet, postmarker (Python), postmark-go, postmark (Node), postmark-php, postmark-rails | — |
| REST | Postmark REST API | Zapier Platform API |
| MCP | — | Zapier MCP |
| OTHER | Inbound Email, SMTP Relay, Webhooks | Webhooks by Zapier, Zapier Web App |
Staxly is an independent catalog of developer platforms. Outbound links to Postmark and Zapier are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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