Free Email Checker · verify an address in 1 second
Free Email Checker
Instantly test an email address: syntax, domain, typos, disposable domains and role-based addresses. Get a quality score in 1 second, right in your browser.
By Alex · Sales category
Address to check
The analysis runs as you type.
Analysis result
Format and quality checks in real time.
·
·
Format and quality checks run in your browser. Real deliverability (an active mailbox) is only confirmed on send.
What is an email checker?
An email checker is a tool that verifies whether an address is correctly formed and whether it shows risk signals before you use it. It catches syntax errors, domain typos, disposable addresses and role-based inboxes, then sums it all up with a quality score.
For a sales or marketing team, it's basic hygiene: emailing invalid addresses drives up your bounce rate, damages your sender reputation and eventually pushes your legitimate messages into spam. Checking upfront protects the deliverability of your entire list.
Fewer bounces
Removing malformed addresses before you send lowers your bounce rate and protects your domain.
Better deliverability
A clean list preserves your sender reputation and keeps your emails out of the spam folder.
Typos caught
gmial.com, hotmial.com, outlok.com: the tool suggests the correct domain at a glance.
Risk signals flagged
Disposable domains and role-based addresses like info@ or contact@ are flagged instantly.
How the email checker works
The tool runs a series of instant checks without sending a single message. Each check feeds an overall score from 0 to 100 and a clear verdict.
The checks it runs
Your emails bounce or land in spam: where's the problem?
A clean list helps, but it's only part of the equation. Take this 30-second quiz to find what's really dragging down your results.
3 quick questions to find your real bottleneck, and the fix that matches.
Checking isn't enough: find the right contacts with Gojiberry
A checker cleans what you already have. It won't tell you who's worth contacting, or when. Gojiberry is an AI-powered, multi-channel prospecting platform: it tracks 30+ buying-intent signals across socials and the web, surfaces leads who are in-market right now, then triggers personalized outreach across channels.
The result: instead of spending your energy scrubbing bought lists, you start from qualified, interested contacts reached at the right moment. Deliverability follows naturally when you write to people who are expecting your message.
Go from cleanup to lead generation
Let Gojiberry spot the prospects who are actively searching and launch personalized outreach for you.
Automate my prospectingPros and limits of an email checker
A checker is essential for list hygiene, but you need to know its exact scope.
- Free and instant, with no sign-up and no message sent.
- Catches invalid syntax, typos and disposable domains.
- Lowers your bounce rate and protects your sender reputation.
- Private: the format analysis runs in your browser.
- Can't confirm 100% that a mailbox exists without a server check.
- Doesn't find new prospects: it cleans what you have.
- Says nothing about a contact's interest or intent.
- A valid address is not an address that will reply.
Best practices for a healthy email list
Checking an address is a start. Here's how to keep your whole list healthy over time.
Check at collection
Validate the format the moment an address enters your system, on your forms and at import. Fixing a typo right away avoids a guaranteed bounce later.
Ban disposable domains
Temporary addresses add no commercial value and artificially inflate your volumes. Filter them at the door to keep a reliable list.
Be wary of role-based addresses
Writing to info@ or contact@ dilutes your message in a shared inbox. Look for the named address of the right person whenever you can.
Clean regularly
Addresses go stale: people leave, roles change, domains close. Periodic cleaning and bounce management keep your deliverability in the green.
Email checker or prospecting platform?
The two are complementary but answer different questions. One makes your data reliable, the other fills your pipeline.
FAQ · email checker
Yes, the tool is completely free and requires no sign-up. You enter an address and immediately get the analysis and quality score.
No. The format and quality analysis runs in your browser, without sending any message. Nothing is sent to the address you check.
No purely web-based tool can guarantee it 100%, because confirming a mailbox exists requires a server query (SMTP). The tool detects invalid format, typos, disposable and role-based domains; final confirmation happens on a real send or via a server-side check.
It's a temporary email domain (for example mailinator.com or yopmail.com) created for one-time use. These addresses have no commercial value and should be removed from your lists.
Role-based addresses point to shared inboxes that are rarely checked and never individual. Your message is less likely to reach the right person than with a named address.
Gojiberry is an AI-powered, multi-channel prospecting platform. It tracks 30+ buying-intent signals across socials and the web, surfaces leads who are in-market right now, then triggers personalized outreach across channels. Where the checker cleans what you have, Gojiberry generates new qualified contacts.
A clean list is nice. Qualified leads are better.
Let Gojiberry spot your next customers while they're actively searching, and launch personalized outreach for you, every week.
Our latest articles
More High-Intent Leads = Your New Growth Engine.
Start Now and Get New High Intent Leads Delivered Straight to Slack or Your Inbox.