Email Validator By Sidemail

Email Validator by Sidemail is a free online tool that checks email validity. It verifies syntax, domain, MX records, and flags disposable providers and typos, with an optional SMTP deep check.

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At a glance

Pricing

Free

Free tier

Yes

API

Skill level

Non-technical

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About

What is Email Validator by Sidemail?

Email Validator by Sidemail is a free, online tool designed to quickly and accurately check the validity of email addresses. Users can paste an email address to perform various checks, including syntax validation, domain and DNS resolution, and MX record verification. The tool also identifies disposable email providers and detects common typos, offering suggestions for correction. For enhanced confidence, an optional SMTP deep handshake can be performed to check if the mail server accepts the recipient, all without sending an actual email. This validator is ideal for ensuring clean email lists and improving deliverability, providing clear reasons for any validation failures.

Best used for

Ideal for marketers and small business owners who need to verify individual email addresses, identify potential delivery issues, and maintain high-quality contact lists. Especially valuable for ensuring email campaigns reach their intended recipients and reducing bounce rates.

Common actions

validate email addresses

check email validity

prevent email bounces

clean email lists

marketingemailSaaS

Capabilities

Key features

Syntax check
Domain & DNS resolution
MX record verification
Optional SMTP handshake
Disposable email detection
Typo detection
Copyable results

Target Audience

marketersmall business ownerstartup founderdeveloper

Integrations

Not yet documented

Pricing & Plans

Free

Not publicly disclosed. Check sidemail.io for current pricing.

FAQs

Does the Email Validator send a test email during the deep check?

No, the Email Validator does not send any test emails. The optional SMTP deep check only performs a handshake with the mail server to determine if it would accept the address, ensuring no actual messages are sent during the validation process.

What does it mean if an email is marked as 'catch-all'?

A 'catch-all' domain is configured to accept any email address, regardless of whether it actually exists. While the validator might show it as 'OK', these addresses carry a higher risk of bouncing later. It's advisable to treat them with caution.

Can I validate a list of emails using this tool?

This specific tool is designed for single email validation. However, Sidemail offers a separate 'Email list validation tool' that performs the same comprehensive checks (syntax, domain/MX, disposable, typos) for validating large lists of emails in one go.

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Also listed in

This tool also appears in

Productivity & Business › Email Management

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