What email platform should I use if I only need account emails?

If you only need account-related emails like:

• sign-up / verification codes
• password resets
• receipts / billing notices
• security alerts
• welcome emails

then you want a transactional email platform, not a marketing email platform.

Good choices

1. Postmark

Best if you want the simplest, most reliable option for account emails.

• Great deliverability
• Very easy to set up
• Built specifically for transactional email
• Clear separation from marketing email

Best for: apps that mostly send login, password reset, and notification emails.

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2. Amazon SES

Best if you want the cheapest scalable option.

• Very low cost
• Strong infrastructure
• Flexible
• A bit more setup and technical work

Best for: developers who want low cost and don’t mind a more manual setup.

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3. SendGrid

Good general-purpose option.

• Easy to get started
• Handles transactional email well
• Also supports marketing email if you need it later

Best for: teams that want one platform for multiple email types.

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4. Mailgun

Another solid transactional email provider.

• Developer-friendly
• Good APIs
• Useful for app emails and automation

Best for: technical teams that want API-first sending.

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My simple recommendation

• Best overall: Postmark
• Cheapest at scale: Amazon SES
• Most flexible/common: SendGrid

If you tell me:

1. your stack,
2. expected volume,
3. whether you need just SMTP or an API,

I can recommend the best one for your case.