Bulk Email Checker

Ychecker's Bulk Email Checker is a powerful tool that simplifies the process of verifying multiple email addresses simultaneously. With our user-friendly interface and advanced features, you can quickly and efficiently clean your email lists, ensuring better deliverability and performance.

How to Verify Bulk Email Lists

1. Input Email Addresses:

• Copy and paste your list of email addresses into the provided textarea.
• Each email address should be on a separate line.
• Alternatively, you can upload a text file containing your email list.

2. Upload Text File (Optional):

• If you choose to upload a text file, click on the "Attach File" button.
• Select the text file from your device and click "Open".
• The contents of the text file will be automatically displayed in the textarea, ready for verification.

3. Start the Verification Process:

• Once you have entered or uploaded your email list, click on the "Verify" button to initiate the bulk email verification process.
• Ychecker will check each email address individually and provide real-time results.

4. Filter and Copy Results:

• After the verification process is complete, you can filter the results based on different statuses.
• Select the desired status (Live, Die, Verify, or Disposable) from the dropdown menu.
• Click on the "Copy" button to easily copy the filtered email addresses to your clipboard.

Note: Please be aware of the usage limits and credit deduction modes:

• Guest Users (Unauthenticated): 100 free email checks per 24 hours (tracked by IP address, auto-resets after 86,400 seconds).
• Logged-in Members: 300 free email checks per 24 hours (tracked by User ID, includes +200 bonus checks/day, auto-resets after 86,400 seconds).
• Account Credits System:
  • Web UI Verification (ychecker.com): 1 Credit = 1 Check (~$0.001 per check).
  • Direct API Integration (app.sonjj.com): Billed per API endpoint rate (from 0.05 to 2.00 credits per request depending on check type). Top up & manage at my.sonjj.com.
• 2 Deduction Modes:
  • Free-First (Default): Uses up your 100/300 daily free checks first; when remaining free count reaches 0, automatically deducts from your Account Credits.
  • Credit-First (use_credit_first = 1): Deducts directly from your Account Credits balance first; when credits run out, falls back to remaining daily free quota.

Developer API & Bulk Verification Endpoints

Base URL

https://app.sonjj.com

Authentication requires the X-Api-Key header on every request. You can obtain your key and manage API Credits by logging into my.sonjj.com.

Primary Endpoint

GET /v1/check_email/ — Full Email Verification (2.00 credits / request)

Checks email existence, provider type (Gmail/Outlook/Other), disposable domain detection, and Gmail/Outlook status (Live, Verify, Disable).

Request Parameters

Parameter	Type	In	Required	Description
email	string	query	true	Target email address to verify

Example Response (200 OK)

{
  "type": "Gmail",
  "disposable": "No",
  "status": "OK"
}

Developer API Endpoints & Credit Rates

Endpoint	Method	Cost	Description
/v1/check_email/	GET	2.00 credits	Full check (existence, type, disposable, phone-gate & disabled status)
/v1/check_gmail/	GET	0.50 credits	Specialized Gmail check (existence, status, avatar)
/v1/check_microsoft/	GET	0.50 credits	Specialized Microsoft check (Outlook, Hotmail, Live)
/v1/check_disposable_email/	GET	0.05 credits	Fast domain disposable detection

Note: For Web UI verification on ychecker.com, the internal controller automatically manages daily free quotas (100 checks/24h for Guests, 300 checks/24h for Logged-in Members) and returns x-ratelimit-* headers.

Frequently Asked Questions (FAQ)