MailboxValidator vs QuickEmailVerification
MailboxValidator
mailboxvalidator.comQuickEmailVerification
quickemailverification.comSide by side
| Figure | MailboxValidator | QuickEmailVerification |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 10 | 3 |
| Spec score · Email Verification APIs | 7.9 (#12) | 7.8 (#19) |
| Spec score · Email Verification Services | 7.9 (#19) | 7.8 (#24) |
| Spec score · Email Validation Software | 7.9 (#7) | 7.7 (#9) |
| Integrations | Listed integrations include Zapier, Make, MailChimp, AWeber, Mailgun, SendGrid, Campaign Monitor, SparkPost, HubSpot, MailerLite, Constant Contact, VerticalResponse, MooSend, Mailjet, iContact, ActiveCampaign, Intercom, Autopilot, ChatGPT, and MCP. | The maker lists integrations including ActiveCampaign, AWeber, Brevo, HubSpot, Mailchimp, Salesforce, SendGrid, Make, and others. |
| Support | The privacy policy lists [email protected] and says to allow up to four weeks for a reply to privacy inquiries. | The pricing page says a dedicated customer support team is available to help users. |
Plans
MailboxValidator
- API-FREEFree
- API-FREE+Free
- BULK-TRIALFree
- BULK-1$19.95, paid once
- BULK-5$39.95, paid once
- BULK-10$59.95, paid once
- BULK-50$149.95, paid once
- BULK-100$199.95, paid once
- BULK-500$399.95, paid once
- BULK-1000$699.95, paid once
QuickEmailVerification
- Free TierFree
- Pay As You Go$4, paid once
- High VolumePriced on request
In their own words
MailboxValidator
MailboxValidator checks email addresses and mailboxes to flag invalid addresses and help reduce email bounces. It is available on the web and through an API, with single-address results returned as JSON or XML. For lists, users can upload text or CSV files for bulk validation. Checks cover syntax, MX records, SMTP responses, greylisting, disposable and free-provider addresses, role addresses, suppression, DMARC, strict SPF, and website reachability. The company says it tests the connection through the SMTP server without sending a message to the recipient. Listed integrations include Zapier, Make, MailChimp, Mailgun, SendGrid, HubSpot, and others; API documentation links libraries for Node.js, Ruby, PHP, Perl, Python, Java,.NET, Go, and Rust. The free API plan is free, billed per month, with 300 queries and 30-day validity. A bulk trial is free for 100 queries and 30-day validity. Yahoo validations are unsupported, and non-ASCII addresses are marked invalid syntax. The FAQ says refunds are not offered; its privacy policy says processed personal data is retained indefinitely, subject to policy limits on deletion requests.
QuickEmailVerification
QuickEmailVerification checks whether email addresses are valid and deliverable, to help reduce bounces and support email deliverability. It offers web tools and an API for individual checks, signup-time verification, and bulk lists. The Bulk Email Verifier accepts drag-and-drop lists, ESP imports, computer uploads, and API uploads. Its REST API returns JSON, with signals such as safe-to-send status, disposable or role addresses, accept-all behavior, free email providers, and typo suggestions. The batch API accepts CSV files, reports job progress, offers categorized results for download, and can notify completion by webhook. Listed integrations include ActiveCampaign, AWeber, Brevo, HubSpot, Mailchimp, Salesforce, SendGrid, and Make. Developer examples or libraries cover PHP, Node.js, Python, Ruby, Go, Java, C#, VB.Net, and cURL. QuickEmailVerification says it is ISO 27001 certified and compliant with GDPR, CCPA, and HIPAA. The free tier costs nothing and resets with 100 credits each day. Pay As You Go costs $4, paid once for 500 credits that do not expire.