Frequently Asked Questions

GMCheck is an email verification service that helps you verify Gmail addresses. It checks if email addresses are valid, active, disabled, or non-existent. This is useful for cleaning email lists, validating user registrations, and maintaining high-quality contact databases.

GMCheck uses advanced verification techniques to check email addresses. When you submit a list of emails, our system processes them and returns the status of each email: LIVE (valid and active), VERIFY (requires verification), DISABLE (disabled), NOT_EXIST (doesn't exist), or UNKNOWN (status unclear).

Currently, GMCheck specializes in verifying Gmail addresses (@gmail.com). The service extracts Gmail addresses from your input text and verifies them. You can paste emails in any format - one per line, separated by commas, or mixed with other text.

Standard allows up to 5,000 lines per check and 100,000 emails per month. Premium allows up to 200,000 lines per check with unlimited monthly emails, API Key access, faster processing, and priority support.

After logging in, you can see your usage statistics in the header (remaining emails count) or by visiting the usage page. The usage shows how many emails you've checked this month and how many remain in your monthly limit.

If you exceed your monthly limit, you'll receive a notification when trying to submit a new check. You can either wait until the next month for your limit to reset, or upgrade to Premium plan for unlimited monthly emails.

Verification time depends on the number of emails and current system load. Small batches (under 100 emails) typically complete in a few seconds to a minute. Larger batches may take several minutes. Premium users get priority processing for faster results.

Yes! You can stop any job that's currently processing by clicking the 'Stop' button. The system will return the results for emails that have already been verified up to that point.

You can view all your past verification jobs in the History page, accessible from the header menu. The history shows job status, email counts, completion statistics, and allows you to view detailed results for each job.

API Key is a feature available for Premium users that allows you to access the email verification API without logging in. You can generate an API key from your profile menu, then use it in API requests with the X-API-Key header. API endpoints use the /api/v1/ prefix and don't require encryption. See the API documentation for details.

Premium users can generate an API key by: 1) Logging into your account, 2) Clicking on your profile menu, 3) Selecting 'API Key', 4) Clicking 'Generate API Key'. Important: Save your API key immediately as you won't be able to see it again after generation.

Yes, you can use the regular API endpoints with JWT authentication (login token). However, API Key provides a more convenient way to authenticate without managing tokens. API Key endpoints (/api/v1/*) don't require encryption, making them easier to integrate.

LIVE: Email is valid and active. VERIFY: Email requires verification (user needs to verify their account). DISABLE: Email account is disabled. NOT_EXIST: Email address doesn't exist. UNKNOWN: Status couldn't be determined. PENDING: Email is still being processed.

Yes! After verification completes, you can export results in several ways: Copy all results to clipboard, copy results by status (e.g., only LIVE emails), export all results to a text file, or export results filtered by status. Results are formatted as 'email|status' for easy processing.

Yes, GMCheck takes data security seriously. All communications are encrypted, and we don't store your email lists permanently. Verification results are stored temporarily and can be accessed through your job history. We follow industry best practices for data protection.

Your raw input and verification results are stored temporarily for you to access through the job history. Jobs are automatically cleaned up after a certain period. We don't share your data with third parties or use it for any purpose other than providing the verification service.

Yes, you can verify the same email address multiple times. Email statuses can change over time (e.g., an account might be disabled later), so re-verification can be useful for maintaining up-to-date email lists.

If a job fails, you'll see an error message with details. You can try submitting the job again. If the problem persists, check your internet connection, verify you haven't exceeded your limits, and contact support if needed.

To upgrade to Premium, visit the Pricing page from the header menu. Click on the Premium plan and follow the instructions to complete your upgrade. Premium plans offer unlimited monthly emails, higher line limits, API Key access, and priority support.

For plan changes or cancellations, please contact our support team through the Contact page or Telegram. They can assist you with plan modifications, cancellations, or answer any billing questions.

Yes, you need to create a free account to use GMCheck. Registration is quick and easy - just provide your name, email, and create a password. Once registered, you can start verifying emails immediately with the Standard plan.

GMCheck works on all modern browsers including Chrome, Firefox, Safari, and Edge. For the best experience, we recommend using the latest version of your browser. The service uses encryption features that require modern browser support.

Yes, GMCheck is responsive and works on mobile devices. However, for the best experience with large email lists and detailed results, we recommend using a desktop or tablet device.

GMCheck uses advanced verification techniques to provide accurate results. However, email verification is not 100% perfect - some email providers may block verification attempts, and email statuses can change. We continuously improve our verification methods for better accuracy.

Standard users can check up to 5,000 lines per submission. Premium users can check up to 200,000 lines per submission. Monthly email limits apply to Standard users.

You can contact our support team through the Contact page, accessible from the header menu. We're available via Telegram at @gmchecklive. Premium users receive priority support with faster response times.

API requests are subject to rate limits to ensure fair usage. Premium users have higher rate limits. If you encounter rate limiting, you'll receive an appropriate error message. For high-volume usage, please contact support to discuss custom solutions.

Yes! Premium users can use the API Key feature to integrate GMCheck into their applications. The API supports checking emails, retrieving job status, getting job history, and accessing usage statistics. See the API documentation for complete integration details.

If you lose your API Key, you can regenerate a new one from the API Key management page. The old key will be revoked and stop working. You cannot recover a lost API key - you must generate a new one.

API requests are subject to rate limits and your monthly email limit (for Standard users). Premium users have unlimited monthly emails and higher rate limits. Each email verification counts toward your monthly limit.

You can run a limited number of jobs at the same time. If the active job limit is reached, you will be asked to wait for current jobs to finish before submitting another one.