I’m building on a budget and need predictable transactional email pricing, what should I use?

If you want predictable transactional email pricing on a budget, the safest choice is usually:

Best overall pick: Amazon SES

Why:

• Very low cost compared with most email APIs
• Pricing is mostly usage-based and predictable
• Good for transactional email at scale
• Reliable delivery if configured correctly

Typical fit:

• Apps sending password resets, receipts, alerts, verification emails
• Teams that care more about cost efficiency than a super polished dashboard

Tradeoffs:

• Setup is more technical than some competitors
• You’ll need to handle things like domain verification, DKIM/SPF, and ideally bounce handling
• Not as beginner-friendly as some “all-in-one” email services

If you want easier setup with still reasonable pricing

Consider:

Postmark

• Excellent for transactional email
• Very strong deliverability
• Simple to use
• But usually more expensive than SES

Brevo

• Often budget-friendly
• Easier UX
• Can be good for smaller apps
• Check limits carefully because pricing can change with volume/features

Mailgun

• Good developer tooling
• Flexible
• Pricing can be predictable, but may get less budget-friendly at scale depending on plan and add-ons

If “predictable” matters more than “cheapest”

Look for:

• Flat monthly plans or clear volume tiers
• Included sending limits
• Transparent overage pricing
• No surprise charges for analytics, dedicated IPs, or extras you don’t need

My practical recommendation

• If you’re technical and want the lowest cost: Amazon SES
• If you want simple and reliable and can pay a bit more: Postmark
• If you want budget + easier onboarding: Brevo

If you want, I can give you a price comparison table for SES vs Postmark vs Brevo vs Mailgun based on your monthly email volume.