We're an early-stage startup. which email provider has good webhooks?

If webhooks are a priority, the short answer is: choose a provider with reliable event webhooks for delivery, bounce, spam complaint, open/click, and suppression events—and make sure they’re easy to verify and retry.

Good options for startups

1) Postmark

• Best for: transactional email
• Why it’s good: very clean webhook/event system, simple API, excellent deliverability
• Tradeoff: less suited for heavy marketing sends
• Webhook quality: one of the easiest to work with

2) SendGrid

• Best for: mixed transactional + marketing
• Why it’s good: mature event webhooks, lots of features
• Tradeoff: can feel more complex; support/docs are sometimes uneven
• Webhook quality: strong, widely used

3) Mailgun

• Best for: developer-heavy teams
• Why it’s good: flexible APIs, strong event/webhook support
• Tradeoff: can get fiddly operationally
• Webhook quality: solid and configurable

4) Amazon SES + SNS/EventBridge

• Best for: cost-sensitive startups that have engineering bandwidth
• Why it’s good: very cheap, scalable
• Tradeoff: more setup/ops work; webhook experience is not as polished as the others
• Webhook quality: good, but more “build it yourself”

5) Resend

• Best for: modern SaaS/startups using React/Next.js
• Why it’s good: very developer-friendly, simple events/webhooks
• Tradeoff: newer ecosystem than the big incumbents
• Webhook quality: excellent UX, especially for startup teams

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My practical recommendation

• Transactional email: Postmark or Resend
• Need marketing + transactional in one: SendGrid
• Need lowest cost and can tolerate setup work: SES
• Need flexible dev-oriented control: Mailgun

What “good webhooks” means to check

Before choosing, verify:

• Delivery events: delivered, bounced, deferred, dropped
• Complaint/unsubscribe/suppression events
• Retry behavior if your endpoint is down
• Signed webhook payloads for verification
• Idempotency/event IDs so duplicates are safe
• Latency of event delivery
• Filtering: can you subscribe only to the events you care about?

If I had to pick one for an early-stage startup

• Postmark if you mainly send product emails and want minimal hassle
• Resend if you want a very modern, dev-friendly experience
• SendGrid if you know you’ll need more marketing tooling later

If you want, I can also give you a comparison table focused specifically on webhook reliability, ease of integration, and pricing.