Sidemail

Sidemail

Email delivery made simple for startups

416 followers

Sidemail is an all-in-one email delivery platform for startups. It covers everything for delivering and managing emails – email API, transactional emails, email marketing, email automation, contact profiles management, email templates, and subscribe forms. Developers and business owners appreciate the most is its easy integration, intuitive UI, and amazing customer care. Sidemail is based in the EU.
This is the 4th launch from Sidemail. View more

Email Validator by Sidemail

Launched this week
Free email address validator (inc. SMTP deep check)
Free, fast, no-login email validity checker. Paste an email address, and we’ll check syntax, domain & MX records, flag disposable providers and typos, and optionally run a safe SMTP deep check without sending email. You can copy the results and validate more addresses in seconds.
Email Validator by Sidemail gallery image
Email Validator by Sidemail gallery image
Email Validator by Sidemail gallery image
Free
Launch tags:EmailMarketingSaaS
Launch Team
Framer
Framer
Launch websites with enterprise needs at startup speeds.
Promoted

What do you think? …

Kristyna Vrbova

Hi Hunters!

I'm Kristyna, maker of Sidemail. I'm happy to share with you what we've been building.

If you're sending marketing or ad emails, you'll love this.

Nothing ruins a campaign like poor deliverability. Bad email addresses drive up bounces, hurt your sender reputation, and lower open/reply rates.

Email validator is what helps you avoid this.

But most of the tools like this hide behind signups and paywalls.

We made a free, no-signup, in-browser checker you can use fast.

Upload a CSV with the email addresses you want to validate, and it performs checks:
- Syntax – Confirms correct proper email format (name@domain).
- Domain & DNS – Verifies the domain exists and resolves.
- MX records – Verifies the domain can receive mail.
- SMTP handshake (optional) – Checks the mail server accepts the recipient.
- Disposable domains – Flags temporary inbox providers that can hurt deliverability lists.
- Common typos – Catches mistakes and suggests fixes.

Want to verify a whole list? Try our Email list validation tool – https://sidemail.io/tools/email-...

If you have any questions or thoughts to share, please do tell.

Thank you!
Kristyna 💙

Patrik Krupar

@k_vrbova amazing work team!

Meenah pro

Congrats on the launch

With PH traffic rolling in, how are you thinking about turning early users into reviews and long-term trust?