Transactional email pricing comparison
Every transactional email tool we track, side by side on price. Numbers pulled from each vendor's published pricing page and refreshed weekly. No invented benchmarks, no estimated tiers.
Free tiers
What each tool gives you on the free plan, before any paid upgrade. Tools without a free plan are listed in the next table.
| Tool | Plan | Contact limit | Monthly send limit | Source |
|---|---|---|---|---|
| Mailgun | Free | · | 3,000 emails (100/day cap, 30-day conversion) | Vendor |
| Mailtrap | Free | · | 4,000 | Vendor |
| Postmark | Free | · | 100 | Vendor |
| Resend | Free | · | 3,000 emails (100/day cap) | Vendor |
Entry paid plans
The cheapest published paid plan for each tool. This is the upgrade target after a free trial or free tier. Custom / contact-sales plans are excluded; see the per-tool page for those.
| Tool | Plan | Monthly price | Contact limit | Send limit | Action |
|---|---|---|---|---|---|
| Mailgun | Basic | $15 /mo | · | 10,000 | View Mailgun |
| Mailtrap | Basic | $15 /mo | · | 100,000 emails (entry $15 covers 10k; scales to $30 at 100k) | View Mailtrap |
| Postmark | Basic | $15 /mo | · | 10,000 | View Postmark |
| Resend | Pro 50k | $20 /mo | · | 50,000 | View Resend |
Mid-tier paid plans
The plan above entry-tier where most growth-stage publishers land as the contact list scales. Tools without a published mid tier jump straight to enterprise / contact-sales pricing and are omitted here.
| Tool | Plan | Monthly price | Contact limit | Send limit |
|---|---|---|---|---|
| Mailgun | Foundation | $35 /mo | · | 50,000 |
| Mailtrap | Business | $85 /mo | · | 750,000 emails (entry $85 covers 100k; scales to $450 at 750k) |
| Postmark | Pro | $16.50 /mo | · | 10,000 |
| Resend | Pro 100k | $35 /mo | · | 100,000 |
Beyond price
Cost is one dimension. The pages below cover the same transactional email set on different axes.
Transactional email migration guides
Featured head-to-head pairs
How this table is built
- Every price and limit is captured from the vendor's own published pricing page. We do not estimate, interpolate, or carry over numbers from third-party reviews.
- Pricing is refreshed weekly via a cron-driven Playwright scrape with editorial preservation: low-confidence scraped values never overwrite verified prior values.
- Ranking inside each table is free-plan-first, then ascending entry price, then alphabetical. Affiliate relationships do not influence ranking.
- "Custom" or "contact sales" plans are omitted from the price columns. The per-tool page (/tools/{slug}) shows the full plan ladder including enterprise tiers.
- Tools without a published mid tier (free + entry + enterprise only) are omitted from the mid-tier table rather than padded with placeholders.
Vendor pricing-page citations
Every plan in the tables above is sourced from the URLs below. Click through to verify any number; vendors update prices on their own cadence and we capture weekly.
- Mailgun: https://www.mailgun.com/pricing/ (captured 2026-04-30)
- Mailtrap: https://mailtrap.io/pricing/ (captured 2026-04-30)
- Postmark: https://postmarkapp.com/pricing (captured 2026-04-30)
- Resend: https://resend.com/pricing (captured 2026-04-30)