Postmark vs GitHub Actions
Reliable transactional email with fast delivery
vs. CI/CD native to GitHub — workflows + marketplace + hosted runners
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
GitHub Actions
Public Repos
$0. Free unlimited minutes on hosted runners (Linux). No private runners.
$0 base (usage-based)
Free (Personal)
$0. 2,000 minutes/mo private repos (Linux). 500MB Packages storage.
Free
Per-minute Overage
$0.008/min Linux ($0.08 macOS, $0.016 Windows) after included minutes.
$0/mo
Team
$4/user/mo. 3,000 minutes/mo. 2GB storage. Org management.
$4/mo
Enterprise
$21/user/mo. 50,000 minutes/mo. 50GB storage. SAML SSO, audit.
$21/mo
Free-tier quotas head-to-head
Comparing free on Postmark vs free on GitHub Actions.
| Metric | Postmark | GitHub Actions |
|---|---|---|
| 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.
GitHub Actions · 18 features
- Actions Cache — Persistent cache across runs.
- Actions Marketplace — 20K+ reusable actions.
- ARC (K8s Controller) — Autoscale self-hosted on K8s.
- Artifacts — Upload/download job outputs.
- Composite Actions — Actions made of other actions.
- Concurrency Groups — Cancel / queue overlapping runs.
- Container Jobs — Run a whole job in a Docker image.
- Environments + Approvals — Gate deploys with manual approval.
- Job Summaries — Markdown summaries in UI.
- Larger Runners — 4-64 vCPU, ARM, GPU.
- Matrix Strategy — Fan out over axes.
- OIDC Cloud Auth — Exchange JWT for cloud credentials.
- Reusable Workflows — workflow_call.
- Secrets + Variables — Encrypted org/repo/env secrets.
- Self-Hosted Runners — Your own runners.
- Service Containers — Sidecar containers (DBs, Redis) per job.
- Triggers — push, pull_request, schedule, workflow_dispatch, etc.
- Workflows — Event-driven YAML workflows.
Developer interfaces
| Kind | Postmark | GitHub Actions |
|---|---|---|
| CLI | — | gh run CLI |
| SDK | postmark-dotnet, postmarker (Python), postmark-go, postmark (Node), postmark-php, postmark-rails | @actions/* toolkit |
| REST | Postmark REST API | GitHub Actions REST API |
| GRAPHQL | — | GitHub GraphQL (Actions) |
| OTHER | Inbound Email, SMTP Relay, Webhooks | Actions Marketplace, Actions Tab (Web), workflow_* webhooks, Workflow YAML |
Staxly is an independent catalog of developer platforms. Some links to Postmark and GitHub Actions may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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