Api Reference
Complete reference for every ConvertNow API endpoint. Covers the send endpoint, API key management, send logs, request/response schemas, error codes, and code examples in Node.js, Python, PHP, Ruby, and curl.
SMTP Configuration
How to connect any application to ConvertNow using SMTP. Covers connection settings, port 465 implicit SSL, and working configuration examples for Nodemailer, PHPMailer, SwiftMailer, Django, Rails ActionMailer, and Python smtplib.
Quickstart
The fastest path from a new account to a delivered email. Covers API key creation, sending your first email via HTTP and SMTP, verifying delivery in the dashboard, and one-liner code snippets in five languages.
Sending Domain Authentication
How to authenticate your sending domain with DKIM, SPF, and DMARC so emails arrive from your own address and not a generic ConvertNow sender. Covers DNS record values, the verification flow, and what the status badges mean.
Webhooks
How to receive real-time delivery and failure events from ConvertNow. Covers registering endpoints, the email.sent and email.failed payload shapes, and HMAC-SHA256 signature verification in Node.js, Python, and PHP.
Suppression List
How to manage email opt-outs and bounces programmatically. Covers adding, listing, and removing suppressed addresses via API, how suppressions interact with sends, and a code example for syncing unsubscribes from your own system.
Migrate from SendGrid
A step-by-step guide for developers switching from SendGrid to ConvertNow. Covers the HTTP API differences, before/after Node.js code, SMTP settings comparison, and feature status for commonly used SendGrid capabilities.
Migrate from Resend
A step-by-step guide for developers switching from Resend to ConvertNow. Covers the minimal URL and key prefix changes needed, response shape differences, Node.js before/after code, and a feature status table including the domain limit improvement.
Code Examples
A copy-paste snippet library for the ConvertNow Email API in Node.js, Python, PHP, Ruby, and Go. Covers basic sends, CC and BCC, attachments, tags, custom headers via SMTP, and bounce handling — no SDK required.