Email Typo Detector
Catch common email misspellings before they cause bounces. Detects typos in popular domains like Gmail, Yahoo, Hotmail, and more.
What is Email Typo Detection?
Email typo detection identifies common misspellings in email domains and suggests corrections. Typos like "gmial.com" instead of "gmail.com" or "yaho.com" instead of "yahoo.com" are surprisingly common and account for a significant percentage of invalid email submissions on web forms.
Our typo detector cross-references the domain portion of an email address against a database of 40+ known misspellings of popular email providers including Gmail, Yahoo, Hotmail, Outlook, iCloud, and ProtonMail. When a match is found, we suggest the correct domain so you can prompt the user to fix their entry.
Implementing typo detection at the point of entry — registration forms, newsletter sign-ups, checkout flows — can recover 5-10% of otherwise lost leads by catching these simple mistakes before the user moves on.
Why Does Typo Detection Matter?
A misspelled email domain means every email you send to that address will bounce. Unlike other validation issues that might be temporary or ambiguous, a domain typo is a guaranteed delivery failure. Worse, the user who made the typo genuinely wanted to hear from you — they just made a small mistake.
For e-commerce businesses, a typo in a customer's email means lost order confirmations, shipping updates, and password reset capabilities. For SaaS products, it means a user who signed up but can never verify their account or receive onboarding emails.
Frequently Asked Questions
What domains does the typo checker cover?
We check for common misspellings of Gmail, Yahoo, Hotmail, Outlook, iCloud, ProtonMail, AOL, Live, and Yandex — covering over 90% of consumer email usage. We also detect common TLD typos like .con instead of .com.
Should I auto-correct typos or just suggest?
Best practice is to suggest the correction and let the user confirm. Some unusual-looking domains are legitimate (e.g., company internal domains). Show a message like "Did you mean [email protected]?" and let the user accept or dismiss.
Can typo detection catch all errors?
No. Typo detection works against a known list of common misspellings. Unusual or creative typos may not be caught. For comprehensive validation, use our full email validator which combines typo detection with DNS, MX, and SMTP verification.