Real-Time Business Email Verification
Budget: $10 – $50 USD
I need a straightforward solution that can check a business email address the very moment it is entered and immediately tell me whether it will accept mail. The list is entirely corporate domains—no personal inboxes—so the check has to cope with common enterprise setups such as catch-all servers, aliases, and sub-domains.
Use any combination of techniques you prefer (SMTP hand-shake, DNS or MX look-ups, third-party APIs, etc.); what matters is that the response is fast enough to feel instant in a web form and accurate enough that I can discard bad addresses with confidence. A lightweight script in Python, Node, or PHP is fine, as long as it can be dropped into an existing PHP/Laravel stack and exposed through a simple REST endpoint.
Deliverables
• Clean, well-commented source code for real-time verification
• A short README with setup steps and sample cURL calls
• Proof-of-concept demo page showing pass / fail feedback within one second
I will consider the job done when I can point the script at a live business email and reliably see whether it is valid, invalid, or unreachable.
Use any combination of techniques you prefer (SMTP hand-shake, DNS or MX look-ups, third-party APIs, etc.); what matters is that the response is fast enough to feel instant in a web form and accurate enough that I can discard bad addresses with confidence. A lightweight script in Python, Node, or PHP is fine, as long as it can be dropped into an existing PHP/Laravel stack and exposed through a simple REST endpoint.
Deliverables
• Clean, well-commented source code for real-time verification
• A short README with setup steps and sample cURL calls
• Proof-of-concept demo page showing pass / fail feedback within one second
I will consider the job done when I can point the script at a live business email and reliably see whether it is valid, invalid, or unreachable.