MailboxValidator Review 2026
Secure and reliable email validation service
What is MailboxValidator?
MailboxValidator is an email validation and list-cleaning service that verifies email addresses via syntax, MX records, server connection, and disposable/role checks to reduce bounce rates and improve deliverability. It offers bulk validation, a single-email API, and platform integrations.
Best for
Mixed
Use cases
- Cleaning email marketing lists
- Reducing email bounce rates
- Real-time email verification via API
Key features
Email syntax and MX record checks
Disposable and role email detection
Bulk list validation
Single-email API (JSON/XML)
DMARC and SPF checks
Pricing
Model
freemium
Price range
Free bulk trial with 100 credits; bulk and API paid plans available.
Free tier
Yes
Integrations
MailboxValidator integrates with 5 tools including:
MailchimpSendGridAWeberMailgunActiveCampaign
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