Mailbox Validation Tool with Proxies
Budget: $100 – $300 USD
I need a small yet rock-solid utility that can confirm whether an email address truly exists at the mailbox level. Syntax and MX checks are trivial; what I lack is a dependable mailbox-level validator that works both directly and through rotating proxies.
Core requirements
• Language is flexible—Python, Java, Go, or whatever you excel in.
• Mailbox validation must be the primary focus. Use SMTP handshake, VRFY, RCPT-TO, or any other reliable method that avoids bulk-blocking and false positives.
• Two operating modes:
1. Direct (no proxy).
2. Proxy (accept a pool of proxies and rotate automatically). I’m open to HTTP, SOCKS, or residential—use whichever gives the highest success rate and document the setup clearly.
Deliverables
• Clean, well-commented source code.
• A configuration file or command-line flags that let me switch between direct and proxy modes.
• A concise README describing prerequisites, execution steps, and proxy integration.
• A brief test report showing accuracy on a sample list.
When you respond, highlight past work that proves you’ve already handled mailbox-level email verification or low-level network tasks successfully. Practical experience and working demos matter more to me than long proposals. I’m ready to hire as soon as I see credible evidence you can deliver.
Core requirements
• Language is flexible—Python, Java, Go, or whatever you excel in.
• Mailbox validation must be the primary focus. Use SMTP handshake, VRFY, RCPT-TO, or any other reliable method that avoids bulk-blocking and false positives.
• Two operating modes:
1. Direct (no proxy).
2. Proxy (accept a pool of proxies and rotate automatically). I’m open to HTTP, SOCKS, or residential—use whichever gives the highest success rate and document the setup clearly.
Deliverables
• Clean, well-commented source code.
• A configuration file or command-line flags that let me switch between direct and proxy modes.
• A concise README describing prerequisites, execution steps, and proxy integration.
• A brief test report showing accuracy on a sample list.
When you respond, highlight past work that proves you’ve already handled mailbox-level email verification or low-level network tasks successfully. Practical experience and working demos matter more to me than long proposals. I’m ready to hire as soon as I see credible evidence you can deliver.