---
title: Email Syntax Validator API
slug: validate-email-syntax
url: https://apyhub.com/dosvak/service/validate-email-syntax
provider: Dosvak LLC
categories: [Communications, Developer Tools]
tags: [email-validation, syntax-check, data-validation, address-validation, signup-validation]
auth: api_key
---

# Email Syntax Validator API

Validate an email address by syntax only and get the local part, domain, and valid flag back. Useful for fast format checks before signup or storage.

## Endpoints

| Method | Path | Description | Atoms |
| --- | --- | --- | --- |
| GET | `` | What it does Validates the syntax of an email address without performing any DNS lookup. It returns… | 10 |

## About

## What it does
Email Syntax Validator checks whether an email address is valid at the syntax level. Send an `email` string and get back a response with the original `email`, the parsed `local` part, the `domain`, and a boolean `valid` flag.

Use it when you need fast client-side or server-side format checks before you store an address, queue a signup flow, or pass data to a downstream messaging system. Because this endpoint validates syntax only, it does not perform DNS or mailbox verification, so it stays instant and predictable for high-volume validation steps.

The response is simple to consume: if `valid` is true, the address matches email formatting rules; if it is false, you can reject it or prompt the user to correct the input. The `local` and `domain` fields are useful when you want to inspect or log the parts of the address separately.

## Usage

Authenticate with an ApyHub API key in the `apy-token` header.
Full docs and a live playground: https://apyhub.com/dosvak/service/validate-email-syntax