What is MailboxValidator?
MailboxValidator checks whether an email address exists and can receive mail. It combines syntax checks, MX record lookups, and mailbox verification in a single API. Teams use it to clean contact lists and protect sender reputation.
MailboxValidator is an email verification service that validates addresses through multiple checks. It inspects syntax, confirms the domain has valid MX records, and tests whether the specific mailbox exists on the mail server. The tool also flags disposable email providers and role-based addresses like info@ or admin@. Users can validate emails one at a time via API or process large lists in bulk through a file upload. Integrations connect directly to popular email platforms such as Mailchimp, SendGrid, and AWeber.
Ideal Customer Profile
Email marketers and developers at startups and mid-market companies who need to clean contact lists and integrate verification into existing workflows.
Key Features
- Email syntax validation
- MX record verification
- Disposable email detection
- Role-based email identification
- Bulk list validation via file upload
- Real-time single email API checks
- Mailbox existence confirmation
- Integrations with major email platforms
- Free trial with 100 queries
How to use MailboxValidator
Teams upload a CSV or text file to validate large lists in one batch, or connect the API to check addresses at the point of collection in real time. Clean lists are then exported or synced to connected email platforms before the next campaign send.
Pricing
Starts at $19.95 for 1,000 queries with 30-day validity. A free trial provides 100 queries at no cost.
Frequently Asked Questions
How do you use MailboxValidator?
Upload a CSV or text file for bulk list validation, or call the API to check individual emails in real time. Both methods return detailed validation results.
What does MailboxValidator cost?
Plans start at $19.95 for 1,000 queries and scale up to $699.95 for one million queries. Each plan is valid for 30 days from purchase.
Why use MailboxValidator over alternatives?
It combines syntax checks, MX verification, and mailbox confirmation to catch invalid addresses before they cause bounces. This protects sender reputation and improves campaign performance.
How does the email verification process work?
The service checks address format, looks up the domain MX records, and contacts the mail server to confirm the mailbox exists. Results indicate whether the address is valid and deliverable.
Is there a free plan available?
A free bulk trial provides 100 validation queries at no charge. Demo options are also available to test the service before committing.
Which platforms integrate with MailboxValidator?
The service connects with popular email tools including Mailchimp, SendGrid, and AWeber. These integrations allow validated lists to flow directly into your sending platform.
