Phone Number Validation & Email Verification Software
Listing updated:March 14, 2024
Works with:
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Overview: and the Checkmyleads google sheets addon was created to verify leads contact information and help with the sales prospecting process. After creating a list of people to reach out to, you want to ensure that you have verified contact information. This will help you maximize your prospecting efforts by saving you time and ensuring that your emails do not bounce and your phone calls and sms texts get delivered. 

Our addon is pay as you go and there are no on-going monthly costs. Therefore, you only pay for what you use. You can buy credits in batches which can be redeemed for verifying phone numbers  and / or email addresses. 

Credit Redemption:
Email Credit Redemption: (1 Credit = 1 Email)
Phone Number Redemption (1 Credit = 1 Phone Number Validation)

Bonus Sign-Up Credits
25 free credits for signing-up

Credit Buying Options:
$10.00 / One-Time Charge | + 800 Credit Verifications | ($0.0125 / credit)
$50.00 / One-Time Charge | + 4400 Credit Verifications | ($0.0113 / credit)
$250.00 / One-Time Charge | + 28,600 Credit Verifications | ($0.0087 / credit) 

How To Buy Credits 
1) Open the addon, select the number of credits that you want to purchase.
2) Select the “Buy Credits” button
3) Enter your credit card number, expiration date, and CSV code 
4) Select the “pay” button
5) Great, now your credits have been added to your account.

Refund Policy:
We do not offer refunds after credits have been purchased.

Lead Credit Expiration
Lead Credits Do Not Expire 

Email Status Description
Valid - The email address passed all checks and is safe to mail.
Invalid - Do not mail. The email does not have proper syntax, the domain is dead or the mailbox doesn’t exist.
Accept_All - The domain doesn’t support a mailbox level check. Also known as a “catch-all” domain. Expect some bounces from these addresses should you choose to mail them.
Risky - The email address is valid but it may cause delivery issues (e.g. spamtrap, honeypot or complainer). If you’re having deliverability issues, don’t send email to risky addresses.
Unknown - We couldn’t get a response in time. The email syntax and domain are usually valid, but we could not confirm the mailbox. Messages to these addresses may see bounces. Repeating the query later may deliver a valid/invalid status.

Phone Number Status Description
Valid: The phone number is usable.
Invalid: The phone number is usable.

Phone Type Description
Landline: The number is used with a wired phone.
Cell: The number is used with a wireless phone.
VOIP: The number is used with a Voice Over IP phone.

If you have any questions or need any help with the plugin, please contact support at or 

Additional information
PricingFree of charge trial
Privacy policy
Terms of service
Check My Leads will ask for the permissions shown below. Learn more
Check My Leads will need access to your Google account
This will allow Check My Leads to :
See, edit, create, and delete all your Google Docs documents
View and manage your forms in Google Drive
See, edit, create, and delete all your Google Slides presentations
See, edit, create, and delete all your Google Sheets spreadsheets
Display and run third-party web content in prompts and sidebars inside Google applications
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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