Compare MailBoxValidator vs. Proton Mail

A dependable email validation solution ensures the identification of invalid email addresses by connecting to the mail server to confirm the existence of mailboxes. This service minimizes email bounce rates and associated costs while enhancing conversion rates and improving sender reputations. Users receive prompt results for email validation, available in either JSON or XML formats. It also assesses whether the mail server is employing a spam trap as a honeypot, verifies if the email belongs to a well-known free provider like Gmail, and checks for disposable email services such as Mailinator. Furthermore, the service cross-references against an internal Do Not Mail list and identifies role-based email addresses, including those like admin, support, and sales. To optimize expenses, duplicate emails are eliminated from the list, and users can expedite bulk cleaning by uploading mailing lists. Immediate validation of individual emails is also supported, along with a complimentary bulk trial plan offering 100 credits for testing. This comprehensive service is designed to enhance the efficiency and effectiveness of email marketing campaigns.

Secure your company’s communications with Proton Mail — the business email solution trusted by over 50,000 organizations. With end-to-end encryption built in, your internal and external communications stay confidential by default. Proton Mail helps your business meet GDPR, HIPAA, and other compliance standards, while giving you full control over your data under strong Swiss privacy laws. Empower your team with encrypted email and calendar, support for your custom email domains, professional branding, and simple migration from providers like Google Workspace or Microsoft 365 — no IT team required.