Discuss your app

Core capability

Email Integration

Transactional emails, marketing emails, and email deliverability for critical user communications.

1-3 daysTypical timeline
$200 - $1,000Typical range
4Approaches compared

SCOPE DECISION

Does this belong
in the first release?

A capability is only essential when the product promise depends on it. Use these signals to keep the decision tied to user value.

INCLUDE WHEN

The product needs it now

  • 01
    User registration and verification
  • 02
    Password reset functionality
  • 03
    Order/transaction confirmations
  • 04
    Important notifications
LEAVE OUT WHEN

The release works without it

  • 01
    Internal tools without external users
  • 02
    Apps with alternative communication (SMS only)

IMPLEMENTATION OPTIONS

Choose the approach
that fits the product.

The right technology depends on ownership, scale, integration depth, and how much operational responsibility the team wants to carry.

ResendModern email API with React Email support

Strengths
  • Great DX
  • React Email templates
  • Good deliverability
  • Free tier
Tradeoffs
  • Newer service
  • Smaller scale experience

PostmarkTransactional email specialist

Strengths
  • Excellent deliverability
  • Fast delivery
  • Good analytics
Tradeoffs
  • Transactional only
  • Higher cost

SendGridFull-featured email platform

Strengths
  • Transactional + marketing
  • Scalable
  • Good documentation
Tradeoffs
  • Deliverability varies
  • Complex pricing

AWS SESLow-cost email service from AWS

Strengths
  • Very cheap
  • High volume
  • AWS integration
Tradeoffs
  • Basic features
  • Requires more setup
  • Reputation management

DELIVERY SEQUENCE

A practical path
through the work.

  • 01Choose email provider based on needs
  • 02Set up domain authentication (SPF, DKIM, DMARC)
  • 03Create email templates for key flows
  • 04Implement transactional email sending
  • 05Add email logging and tracking
  • 06Set up bounce/complaint handling
  • 07Test deliverability across providers
  • 08Monitor email analytics

WATCH FOR

Common implementation mistakes.

  • 01
    Not setting up SPF/DKIM/DMARC (spam issues)
  • 02
    Using personal email for sending
  • 03
    Not handling bounces and complaints
  • 04
    Missing unsubscribe links
  • 05
    Sending from no-reply addresses
  • 06
    Not testing across email clients

QUESTIONS

Before you commit the scope.

Transactional vs. marketing email providers?+

Transactional (Postmark, Resend) optimize for deliverability and speed. Marketing (Mailchimp) handle lists and campaigns. Most MVPs need transactional first.

How do I improve email deliverability?+

Set up SPF, DKIM, DMARC on your domain. Warm up new sending domains. Monitor bounce rates. Use dedicated IP for high volume.

Should I build email templates with code?+

Use React Email or MJML for maintainable, responsive templates. Avoid complex HTML email issues with these frameworks.

DISCUSS YOUR APP

Turn this decision
into working software.

Bring the product context and current scope. We will choose the approach after the release is clear.

Discuss your app