Resend
Plan limits need review
Review due
Check the official provider page for current pricing and limits.
Check official pricing ↗APP EMAIL · UP TO 10,000 / MONTH
Small volume.
Busy days.
Check the cost of password resets, receipts and other app emails. A low monthly total can still exceed a free plan’s daily limit.
02 / MONTHLY USD ESTIMATE · BEFORE TAX
Try two 1,500-delivery examples
Both examples send 1,500 deliveries over 30 UTC days. Choose one to compare. Your SES data and billing settings stay unchanged.
Even: 30 × 50 = 1,500.
Busy: 27 × 50 + 1 × 150 + 2 × 0 = 1,500.
Prices need review. Estimates and plan eligibility stay hidden until current prices can be verified. JavaScript and an accurate device clock are required.
Postmark
Plan limits need review
Review due
Check the official provider page for current pricing and limits.
Check official pricing ↗Amazon SES
Plan limits need review
Review due
Check the official provider page for current pricing and limits.
Check official pricing ↗Selected plans for this small-volume scenario, not a feature ranking. Setup effort, quotas and required features differ. No paid overage is needed within this tool’s 10,000-delivery range.
HOW TO READ THE RESULT
Count the peak,
not just the month.
For example, 3,000 deliveries in a month with a 150-delivery UTC day exceeds Resend Free’s daily limit. With the same monthly total spread across days of at most 100, it fits the published free allowance. Timing is only one limit: production approval, domain verification and sending-rate quotas still apply.
Have day-by-day counts? Download the JavaScript quota examples (ZIP, 5 KB) to check a complete period against daily and total limits. Includes readable source, six offline tests, instructions and an MIT license. Runs locally with Node.js, without dependencies, email addresses or network requests. Supply your provider’s current limits; this is not a live rate limiter. Original AI-assisted code and documentation.
Resend Free includes 3,000 monthly deliveries and 100 per UTC day. Above either limit, this tool uses Pro at $20/month with 50,000 included. Postmark Free includes 100/month; above that, this tool uses Basic at $15/month with 10,000 included. Higher feature tiers and legacy contracts are outside this estimate.
SES Essentials uses $0.16 per 1,000 outgoing recipient-deliveries in this range. À la carte base sending uses $0.10 per 1,000. Both add $0.12 per GB of entered billable outgoing data. Essentials includes a different feature bundle; selecting à la carte here does not change your AWS account. Taxes, credits, dedicated IPs, deliverability add-ons, global endpoints, storage and other AWS costs are excluded.
Prices checked September 11, 2026 (UTC). Estimates and eligibility expire after 30 days without review. Inputs stay in browser memory; shared links also encode your numbers in the URL fragment. The fragment is not sent to our server, but anyone receiving the link can read it. We collect only aggregate page, arrival-category, comparison and provider-click counts, honoring Do Not Track and Global Privacy Control; see our privacy explanation.
Official sources & independence
Resend plans · Resend daily and monthly quotas · Postmark plans · SES plans and data charges · SES account quotas.
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