Bounces hurt every send
A high bounce rate damages your sending reputation, so even mail to good addresses starts landing in spam.
Mailcleaner · Email verification
Real-time and bulk email verification, with a clear verdict.
Flaxxa Mailcleaner verifies a single email address in seconds, or a whole list in the background, and gives each address a verdict (valid, invalid, risky, catch-all, disposable, role-based, unknown or abuse) with a risk score, a confidence score and the reason behind it.
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mailcleaner.flaxxa.com / verification
Verify
VALID[email protected]google
Risk
8
Confidence
96
Signals
- MX found
- SMTP connectable
- Disposable
- Role-based
- A verdict in seconds
- Single
- Paste, file, Drive, API
- Bulk
- Risk and confidence
- 0–100
- Verdicts with reasons
- 8
01 / 04
Why verify email addresses before you send?
Bad data gets in everywhere
Typos, fake sign-ups and abandoned inboxes build up in every list and CRM.
A valid format isn't enough
An address can look right and still not exist. Only a mailbox check tells you.
02 / 04
How does bulk email verification work in Flaxxa Mailcleaner?
Bring the addresses
Check one address, paste a list, upload a file, import from Google Drive or call the batch API.
Fix typos first
A free scan spots likely typos such as gmial.com and offers to fix them before the job starts.
Each address is checked
Syntax, typo, disposable, role, MX, SMTP and catch-all checks return a verdict and a reason.
Act on the results
Filter by verdict, export a clean list, and suppress the addresses you never want to mail.
03 / 04
What does each result include?
Verdict
Valid, invalid, risky, catch-all, disposable, role-based, unknown or abuse.
Reason code
Why the verdict was given, such as smtp_rejected, mx_missing or disposable_provider.
Risk score
0–100, higher is riskier, for your own send rules.
Confidence score
0–100, how sure the verdict is.
Signals
MX found, server reachable, disposable, role, free provider and catch-all score.
Typo suggestion
The likely correct address when the domain looks misspelt.
04 / 04
What changes when you verify first?
Fewer surprises on send day.
Lower bounce rate
Addresses that don't exist are removed before they bounce.
Honest uncertainty
Addresses that can't be confirmed are marked risky or catch-all, not passed as valid.
Rules you control
Set your own thresholds on the risk score and verdicts.
Keep exploring
More Mailcleaner capabilities
The checks
The checks behind each verdict: syntax, typo, disposable and role detection, MX lookup, an SMTP mailbox check, catch-all detection and deeper signals.
List cleaning
Clean an email list in one upload: counts per verdict, a clean CSV or XLSX export, and a suppression list so bad addresses don't creep back in.
API and widget
An email validation API for single checks and batches of 1,000, file uploads and signed webhooks, plus a widget that checks addresses on your forms.
FAQ
Email verification: common questions
Upload a CSV, TSV, TXT or XLSX file of up to 25 MB, paste a list, import a file from Google Drive, or pull from a connected email tool. The job runs in the background and shows counts per verdict as it goes.
Get started in minutes
Try Flaxxa Mailcleaner free.
Spin up a workspace and put Email verification through its paces.
Free plan · No credit card · Cancel anytime