Verification fleet · Node

mx1.spsverify.com

Reacher email-verification node. Part of the SPS Verify fleet for SMTP handshake validation on opt-in outreach lists.

Operational

Node info

This server is one of five dedicated verification nodes in the SPS Verify fleet. Each node accepts SMTP-handshake verification requests from our worker, runs MX + RCPT-TO checks against destination mail servers, and returns a deliverability classification.

Hostname mx1.spsverify.com

Region US East

Role Reacher node

About SPS Verify

SPS Verify operates email verification infrastructure for outreach list hygiene. We don't send marketing or bulk email from these nodes — only protocol-level SMTP-handshake validation. Verification operates within standard ESP and ISP guidelines, with reverse DNS, SPF alignment, and FCrDNS maintained on every IP.