Prompt
Which email APIs have webhooks?
Latest observation
Most major email APIs support webhooks (often called event webhooks or inbound webhooks) for things like delivered, bounced, opened, clicked, spam complaint, and inbound email events.
Common email APIs with webhooks
- SendGrid — Event Webhook, Inbound Parse Webhook
- Mailgun — Webhooks for delivery, opens, clicks, bounces, spam complaints, inbound routes
- Postmark — Message stream webhooks, inbound webhooks
- Amazon SES — Event publishing via SNS / EventBridge (not always called webhooks, but webhook-like event delivery is supported through integrations)
- Mailchimp Transactional (Mandrill) — Webhooks for message events
- SparkPost — Event webhooks, inbound relay webhooks
- Brevo (Sendinblue) — Webhooks for email events and inbound messages
- Resend — Event webhooks
- Customer.io — Webhooks for email events
- MailerSend — Webhooks for email events and inbound email
- Elastic Email — Webhooks
- Zoho ZeptoMail — Webhooks for delivery events and inbound handling
- Pepipost / Netcore Email API — Webhooks
What webhooks typically cover
- Delivered
- Opened
- Clicked
- Bounced
- Deferred / delayed
- Dropped / rejected
- Unsubscribed
- Spam complaint
- Inbound email received
If you mean “which ones support inbound email webhooks?”
These commonly do:
- Mailgun
- SendGrid
- Postmark
- SparkPost
- MailerSend
- Mailchimp Transactional
- Brevo
- Amazon SES (via Lambda/SNS/EventBridge setup)
If you want, I can also give you:
- a comparison table of the top email APIs with webhook support, or
- the best option depending on your use case (transactional email, inbound parsing, high deliverability, etc.).
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
Mistral,
Copilot,
Meta AI,
Qwen.
How can brands improve their AEO?
Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as dotdotPR. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.
Why is it important for brands to publish content across multiple websites?
Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.
Want this interpreted for your brand?
Explorer is the free public corpus. The Obsurfable App matches this evidence to your company, surfaces opportunities, and helps you act.