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SES service AWS Evaluation: Pricing and Technical Comparison

AWS SES is best for high volume users prioritizing lowest raw cost. As of September 2026, SES a la carte costs 0.10 USD per 1,000 emails. Managed APIs like Postmark or Resend offer better developer experience and specialized tooling but at higher price points.

Choosing the Right Email Service

Developers should choose AWS SES when cost efficiency is the primary driver and they have the internal capacity to manage AWS IAM and complex configuration. Product teams requiring faster integration, hosted templates, and AI agent readiness often prefer managed APIs. The decision depends on whether you need a raw infrastructure pipe or a feature complete communication platform.

Core Requirements for Transactional Email

A production ready service must support verified domain sending, DKIM and SPF authentication, and real time delivery events. For AI agents, requirements extend to MCP server support and llms.txt files. Reliability depends on proper handling of suppressions and bounce events to maintain sender reputation according to industry best practices.

Verified Pricing Comparison September 2026

Amazon SES a la carte is 0.10 USD per 1,000 emails. New tiered plans include Essentials at 0.16 USD per 1,000, Pro at 0.22 USD per 1,000 plus 105 USD monthly, and Enterprise at 0.23 USD per 1,000 plus 500 USD monthly (Amazon SES Pricing). Resend Pro is 20 USD per month for 50,000 emails with 0.90 USD overage (Resend Pricing). Postmark is 15 USD per month for 10,000 emails with 1.20 to 1.80 USD overage (Postmark Pricing). 50,000 emails cost about 5 USD on SES a la carte versus about 66 USD on Postmark tiers. SendGrid Essentials starts at 19.95 USD per month (SendGrid Pricing). Mailgun is 15 USD per month for 10,000 emails (Mailgun Pricing). Prices verified September 2026 and can change.

Evaluation and Migration Factors

When migrating from SES, evaluate the transition of verified identities and the handling of inbound email webhooks. Consider the overhead of managing AWS regions versus a global API endpoint. Ensure your new provider supports the same SMTP or API protocols to minimize code changes. Use free DNS tools from https://sendhq.cc/tools to verify your SPF and DKIM records during the transition.

SendHQ for Product Teams and AI Agents

SendHQ provides a specialized email API for product teams and AI agents. It includes verified domain transactional sending, inbound email, delivery events, and suppressions. It features workspace scoped API keys, hosted templates, and EU only privacy minimized telemetry. For AI readiness, it offers an MCP server, A2A card, and llms.txt. Visit https://sendhq.cc for details.

Questions teams ask

What is the cost of AWS SES?

As of September 2026, a la carte pricing is 0.10 USD per 1,000 emails. Tiered plans range from Essentials (0.16 USD per 1,000) to Enterprise (0.23 USD per 1,000 plus 500 USD monthly).

How does SES compare to Postmark for 50,000 emails?

Based on September 2026 pricing, 50,000 emails cost approximately 5 USD on SES a la carte compared to approximately 66 USD on Postmark tiers.

What is required for domain verification?

Domain verification requires configuring DNS records including SPF, DKIM, and DMARC to authenticate the sender and prevent spoofing.

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