Find the best transactional email for your workload
Start with the priced options, then check capabilities, limits and commitments. We do not score qualities we have not measured.
What this comparison covers
Outbound transactional email, one recipient per send, shared IPs and one sending domain. Monthly billing without introductory discounts. Deliverability and support differ. Marketing automation, inbound processing, validations and dedicated IPs are excluded.
Evaluating 5 products from 5 published in this category. USD monthly equivalents, before tax. Features and service compatibility need separate evaluation.
- Emails sent
- 50,000 emails / month
- Peak daily sending
- 2,000 emails / day
- Average message size
- 32 KB / email
Choose the fit, then compare the bill
- Confirm the product supports your requirements. “Not modeled” does not mean a vendor cannot support them.
- Compare included usage, hard limits and paid extras at your expected volume.
- Account for annual commitments, migration effort and the exclusions shown below.
Priced options to evaluate
4 eligible products. Quote-only, expired and unsupported configurations are excluded from cost rankings.
Amazon SES
Metered outbound delivery with separate message-data charges.
$5.19 / month
À la carte outbound
Official pricing · Checked 2026-10-05
Cost breakdown and exclusions
- Monthly subscription: $0
- Outbound messages: $5.00
- Outgoing message data: $0.19
- Production sending approval and account-specific sending quotas are required. Temporary AWS credits are excluded. Infrastructure for templates and event handling may cost extra.
- EC2 transfer, global endpoints, tenant features, inbound email, dedicated IPs and deliverability add-ons.
À la carte outbound: $5.19/month at reference usage.
Resend
A developer-focused email API with React templates.
$20.00 / month
Pro · 50,000
Official pricing · Checked 2026-10-05
Cost breakdown and exclusions
- Monthly subscription: $20.00
- Additional emails (50,000 included): $0
- Pay-as-you-go must be enabled. Additional emails are charged in whole 1,000-email buckets. Higher prepaid volume plans are not modeled.
- Inbound processing, dedicated IPs, email validation, marketing automation and premium support.
Pro · 50,000: $20.00/month at reference usage.
Mailgun
Email API and SMTP delivery with tiered operational features.
$35.00 / month
Foundation
Official pricing · Checked 2026-10-05
Cost breakdown and exclusions
- Monthly subscription: $35.00
- Recurring price after any trial. Only the included allowance is verified; higher-volume quotes are unavailable.
- Inbound processing, dedicated IPs, email validation, marketing automation and premium support.
Foundation: $35.00/month at reference usage.
Postmark
Transactional delivery with clear message retention.
$66.00 / month
Platform · 10,000
Official pricing · Checked 2026-10-05
Cost breakdown and exclusions
- Monthly subscription: $18.00
- Additional emails (10,000 included): $48.00
- Models the published 10,000-message subscription with overages. Larger prepaid message allowances may be cheaper and are not modeled.
- Inbound processing, dedicated IPs, email validation, marketing automation and premium support.
Platform · 10,000: $66.00/month at reference usage.
Questions before you decide
Which Transactional email product is cheapest?
Amazon SES has a lowest modeled cost among the eligible products shown at reference usage. Ties share a rank. This is not a claim about every vendor or workload.