Clean your email list without leaving Google Sheets™.

MailValid checks each address and tells you whether it can actually receive mail, so you can remove bad addresses before they bounce and hurt your sender reputation.

HOW IT WORKS
1. Open Extensions → MailValid → Verify emails.
2. Paste your MailValid API key (once; it's saved to your Google™ account, never to the spreadsheet).
3. Select a column of email addresses and click Verify.

Results appear in the columns next to your list, color-coded:
• valid: safe to send
• invalid: the mailbox doesn't exist
• catch_all: the domain accepts everything, so delivery is uncertain
• unknown: the mail server didn't give an answer (no credit charged)
• do_not_mail: role-based, disposable or otherwise risky addresses

Each row also gets a 0–100 confidence score, the mailbox provider (Google™, Microsoft and more) and the reason for the result.

FORMULAS
• =MAILVALID_STATUS(A2) returns the status for one address or a range
• =MAILVALID_VERIFY(A2) returns status, score, provider and reason in four cells

BUILT FOR REAL LISTS
• Verifies thousands of rows in one go
• Shows the credit cost before you run, and warns before overwriting data
• Skips blank cells and text that isn't an email address
• Repeated addresses are only charged once

WHAT EACH CHECK COVERS
Syntax, domain and MX records, SMTP mailbox check, catch-all detection, disposable and role-based addresses, and free email providers.

PRICING
You need a MailValid account. Sign up free at mailvalid.io and get 100 credits, no card required. One credit verifies one address, and "unknown" results are free. After that, buy credits pay-as-you-go from $8 for 2,000. Credits never expire. There's no subscription.

PRIVACY
The add-on only reads the cells you select or reference in a formula, and sends those addresses to MailValid for verification. It can't open your other files. Details: https://mailvalid.io/privacy

A verification result doesn't prove someone's identity or consent to be contacted. Follow the email laws that apply to you.

Support: sachin@mailvalid.io · https://mailvalid.io/support

Google™, Google Sheets™ and Google Workspace™ are trademarks of Google LLC. MailValid is not affiliated with or endorsed by Google LLC.