Email Validator - Check Valid Email

Check the format and validity of the email address

Enter email

Email Validator Online - Professional free email validation tool

Tan Phat Digital's Email Validator tool helps you check the validity of your email address completely and accurately. Validate the format according to RFC 5322 - the international standard for email format. Automatically detect temporary email (disposable email) from services such as Tempmail, Guerrillamail, 10minutemail - helps filter junk email from the database. Intelligently detects and suggests correction of common domain spelling errors such as gmail.com → gmail.com, hotmal.com → hotmail.com. Score email quality from 0-100 based on many criteria. All processing takes place offline in the browser, ensuring absolute security. The tool is completely free, with unlimited number of tests.

Outstanding features

Check email format according to international RFC 5322 standard
Validate the structure local part (before @) and domain (after @)
Check the length of local part (max 64 characters) and domain (max 253 characters)
Detect temporary emails from Tempmail, Guerrillamail, 10minutemail, Mailinator
Automatically detect and suggest correction of common domain spelling errors
Score email quality from 0-100 with intuitive progress bar
Displays details of each test criterion (passed/failed)
Completely offline processing in the browser - 100% secure
No storage or tracking of email addresses
Completely free, unlimited number of tests

Why do we need to check email before adding to the database?

Invalid emails are the leading cause of high bounce rate in email marketing. According to statistics, a bounce rate above 2% can cause your email to be marked as spam by ISPs such as Gmail, Yahoo, Outlook. Each hard bounce (non-existing email) reduces the sender reputation score, affecting the deliverability of the entire campaign. Temporary email (disposable email), although valid in format, will be deleted after a few minutes/hours, wasting resources and distorting metrics. Domain misspellings like gmial.com, yahoo.com are very common when users type quickly. Checking emails right at the registration form helps: reduce bounce rate, protect sender reputation, increase deliverability, and ensure a clean database.

Benefits when used

  • •Reduce bounce rate to below 2% - the safe threshold for email marketing
  • •Protect sender reputation and domain reputation
  • •Increase email deliverability - more emails arriving in your inbox
  • •Detect typos immediately, giving users the opportunity to correct
  • •Filter out temporary emails, keep database quality
  • •Save email service costs (calculated by number of subscribers)
  • •Improved metrics: open rate, click rate more accurate
  • •Reduce complaint rate from unwanted emails

Detailed instructions on how to check email

  1. 1Enter the email address to check in the input box
  2. 2Press the
  3. 3button or Enter
  4. 4See overall quality score (0-100) with progress bar
  5. 5See details for each criterion: format, RFC 5322, domain, TLD, disposable, typo
  6. 6If there are suggestions to correct spelling errors, consider applying
  7. 7Emails with 70+ points are considered valid and of good quality

Cooperate immediately with Mavis Digital

We not only design websites, but also help businesses build strong digital brands. Providing comprehensive website design services from design to SEO optimization. Please contact Mavis Digital immediately to create breakthrough, effective and sustainable technology solutions for your business in Ho Chi Minh.

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