Email API guides.
Practical how-tos for shipping email with Samva. Domain authentication, deliverability, templates, signed webhooks, and inbound threading, with the steps that matter in production.
- Mailgun
Migrate Mailgun Inbound Routes to a Signed Webhook
Move Mailgun Routes that forward to a URL onto Samva: map filters, fields, signatures, and retries, then cut over one hostname's MX with a rollback record.
Read guide - Node.js
Receive Email in Node.js with a Signed Webhook
Receive inbound email in Node.js: verify Samva's signed message.received webhook, read the full email and attachments, and test it locally without sending mail.
Read guide - Python
Receive Email in Python with a Signed Webhook
Receive inbound email in Python: verify Samva's signed message.received webhook with the standard library, then read the email and attachments with requests.
Read guide - Resend
Migrate from Resend and keep replies in the thread
Map Resend sends, batches, templates, webhooks, and domains onto Samva, then cut over one flow while replies stay in the conversation.
Read guide - Node.js
Send Email with Node.js and the TypeScript SDK
Send email from Node.js with the Samva TypeScript SDK: send, retry safely, handle errors, and move over from Nodemailer. Runs on Node 24 with no build step.
Read guide - Python
Send Email in Python with the REST API and requests
Send an email from Python with requests or httpx: one POST to the Samva REST API, safe retries with an idempotency key, and webhook checks. No SDK needed.
Read guide - SendGrid
Migrate SendGrid Inbound Parse and keep replies
Move SendGrid Inbound Parse to Samva with a payload map, verified webhooks, attachment retrieval, duplicate handling, and a reversible MX cutover.
Read guide - Inbound email
Inbound email parsing: receive, thread, and reply
Build an inbound email path that verifies signed webhooks, reads the parsed reply in its conversation, and sends a threaded response.
Read guide - Amazon SES
Replace Amazon SES without rebuilding delivery
A practical migration path from Amazon SES and custom glue to a typed email API with templates, conversation threading, and signed webhooks.
Read guide - Webhooks
Email Webhooks: Events, Signatures, and Idempotency
Subscribe to email events, verify Standard Webhooks signatures, and handle retries idempotently.
Read guide - Email authentication
Email authentication: SPF, DKIM, and DMARC explained
Understand how SPF, DKIM, and DMARC work together, set them up in the right order, and pass the Gmail and Yahoo bulk-sender rules.
Read guide - Transactional email
How to Choose a Transactional Email API: Checklist
Evaluate a transactional email API on idempotent sends, domain authentication, webhooks, templates, and suppression, then wire a first integration with code.
Read guide