InboxTrue
6.5#12 in email verification apis$50 one-timeFree planWebAPI
VisitInboxTrue vs MailboxValidator
MailboxValidator
6.8#2 in email verification apisFree planFree planWebAPI
VisitWhat both publish
| Fact | InboxTrue | MailboxValidator |
|---|---|---|
| Bulk validation | The bulk endpoint accepts up to 200,000 email addresses per order and supports delivery webhooks. | Users can upload an email list in text or CSV format for bulk validation. |
| Headquarters | United States | Penang, Malaysia |
| Integrations | The maker describes integration through a REST API but does not name third-party app integrations on the opened pages. | 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. |
| Security | The privacy policy says data is encrypted in transit and at rest, access is role-based and audit logged, and API keys are hashed. | Hexasoft says it maintains technical, administrative, and physical measures reasonably designed to help protect personal data from unauthorized processing. |
| Support | Enterprise customers can request dedicated support, and the API documentation says customers can contact InboxTrue about higher rate limits. | The privacy policy lists [email protected] and says to allow up to four weeks for a reply to privacy inquiries. |
| Validation checks | The service checks syntax, DNS/MX, SMTP mailbox existence, disposable addresses, and catch-all domains. | Checks include syntax, MX records, SMTP response, greylisting, disposable addresses, free providers, role addresses, suppression, DMARC, strict SPF, and website reachability. |
InboxTrue plans
- Free tierFree
- One-time$50, paid once
- EnterprisePriced on request
MailboxValidator plans
- 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
Pick InboxTrue if…
You want what its maker publishes above — check its page for the details.
Pick MailboxValidator if…
It suits teams that need to check individual email addresses or validate uploaded lists. Developers can also use its API and linked language libraries.