You already know clean data is the #1 factor in cold email reply rates and inbox placement. Stop paying inflated third-party API middleman taxes. Connect directly to authoritative mail servers over raw Port 25 TCP sockets, live DNS MX lookups, in-memory disposable matching, and smart catch-all detection — for a flat 7p / check.
Upload your CSV list with zero contact caps. Ready in seconds.
Authoritative DNS MX queries with priority ranking in 2ms.
Low-level TCP handshake: HELO, MAIL FROM, and RCPT TO.
Probe randomized recipient to isolate risky catch-all domains.
Download 99% deliverable CSV with zero bounce risk.
Three simple steps that put enterprise-grade deliverability on top of your outreach campaigns.
Upload your raw CSV or TXT lead lists up to 100,000 rows. We stream micro-batches of 500 rows to ensure zero memory loss or server timeouts.
Our engine executes RFC 5322 syntax validation, checks 30,000+ disposable domains, queries live DNS MX records, and verifies mailboxes via Port 25.
Export 100% clean, verified CSV lists ready for instantly plugging into Amazon SES, Mailzop, Smartlead, or Instantly with 99%+ deliverability.
Direct HDFC Vyapar UPI or instant Razorpay. Verification credits never expire.
| Capability / Metric | MXBees (Self-Hosted Port 25) | ZeroBounce | NeverBounce | Hunter.io |
|---|---|---|---|---|
| Price for 50,000 Checks | ₹3,999 (8p / check) | $225 USD (~₹18,500) | $150 USD (~₹12,400) | $199 USD (~₹16,500) |
| Port 25 Raw Socket Verification | Native Raw Socket | Proprietary API | Proprietary API | Partial / Guessed |
| Catch-All Probing | 5-Stage Live Random Probe | Yes | Yes | Basic Flag |
| Indian Payment Options | Direct HDFC UPI + Razorpay | Credit Card USD Only | Credit Card USD Only | Credit Card USD Only |
Here is why outbound teams are switching from expensive contact-taxed tools to MXBees.
"We were paying ₹24,000/mo on NeverBounce for 100,000 contacts. Moving to MXBees dropped our verification bill to ₹6,999 with zero deliverability loss. Connecting our CSV lists took under 2 minutes."
"Catch-all domain detection alone saved our domain reputation on Google Workspace and Amazon SES. The low-level Port 25 check is accurate and 10x faster than wrapper APIs."
"The zero subscription model and permanent credits allow us to verify leads for seasonal cold outreach without worrying about expiring balances. Truly developer-first."
Your email lists are processed in-memory and encrypted at rest using AES-256. We never resell your data.
Everything you need to know about MXBees verification and billing.