HexValidEmail
Features and requirements

Features

• Checks syntax, domain, and username of email addresses. Selectable validation level lets you choose the tradeoff between delay and thoroughness.

• Full RFC-compliant syntax check parses simple addresses such as:
      info@example.com
  or more complex forms:
      "Company Info" <info@example.com>

• DNS check ensures the domain exists and retrieves MX records pointing to the domain's mail servers

• SMTP check contacts mail servers for the domain to see if they will accept mail to the address

• Compatible with any ActiveX client, including ASP, Visual Basic, Visual C++, Cold Fusion, Delphi, and others

• Dual interfaces for easy late binding or efficient early binding

• Reliable, efficient operation. Developed in Visual C++ using ATL.

• No external dependencies apart from our own HexDns

Requirements

• Windows 95, 98, ME, NT, 2000, XP, or later
• TCP/IP networking installed
• A directly-addressable DNS server (not through a proxy)
• Firewalls will need to allow outgoing traffic to UDP port 53 (for DNS) and TCP port 25 (for SMTP)
• HexDns (no purchase required--HexValidEmail includes a runtime license)

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