Bulk Email Verification

emailverify.io provides multiple straightforward methods to import your email lists for verification and list cleaning.

Emailverify.io can process email lists uploaded as Comma Separated Value files (.csv), Microsoft® Excel® files (.xls, .xlsx), or text files (.txt).

For optimal processing, your file should meet these requirements:

• Each row should contain one email address
• The first row include column headers named “Email”
• Email addresses must appear in the same column throughout the file
• Maximum file size: 25MB with up to 5000 addresses

Your list can include additional columns like names or physical addresses. emailverify.io will preserve all existing data and append verification results to each row.

Example list before verification showing multiple columns

Example list after verification with results appended to each row

Upload Process

Starting the Upload

After logging into your emailverify.io account, navigate to the Email Verification section and select Bulk Verification.

Click Browse File to select your email list from your local storage. You can also upload files through Dropbox, Google Drive and Microsoft OneDrive.

Column Mapping

Once your file is selected, our system will display a column mapping interface. 

Here you can:

• Select the appropriate column containing email addresses
• Choose whether to enable duplicate removal (recommended to save verification credits)

Processing Options

After confirming your column selection, you'll be presented with processing options:

Verify: Begin immediate processing of your email list.

Schedule: Schedule your verification for a later date and time that works best for your workflow. This is ideal for large lists or when planning verification around campaign schedules.

File Processing

Once processing begins, your list will appear in the Result section. 

The system will automatically:

• Validate file format and structure
• Check available verification credits
• Begin the verification process

You can monitor progress from your Result table and will receive a notification when verification is complete.

Best Practices

• Enable duplicate removal to optimize credit usage
• Verify lists regularly (every 30-60 days) for maintaining list hygiene
• Keep original files backed up before verification
• Use scheduled processing for large lists during off-peak hours

Try now : Bulk Email Verification Service