Multi-Account SES Strategy for Enterprise

Enterprise email infrastructure requires more than a single AWS account. Here's the architecture pattern leading companies use.

Why Multiple Accounts?

• Scale: Each account has sending limits. More accounts = more capacity.
• Isolation: Issues in one account don't affect others.
• Compliance: Separate accounts for different business units or regions.
• Reputation: Protect transactional mail from marketing campaigns.

Architecture Overview

A typical enterprise setup includes:

• Dedicated accounts for transactional email (receipts, notifications)
• Pool of accounts for marketing campaigns
• Separate accounts per major business unit or product
• Regional accounts for data residency compliance

Managing Complexity

The challenge is managing all these accounts. You need:

• Centralized routing logic
• Unified analytics dashboard
• Cross-account suppression lists
• Automatic failover between accounts