What we run

Two engines. One outbound pipeline.

Every campaign LeadSourcing manages runs on the same stack: Mailheight for sending and sequencing, and the Hamcut Ecosystem for everything that has to happen before an email is trusted enough to send. Nothing here is a black box; each stage is its own tool, doing one job well.

Standalone & white-label, by default Every tool below works on its own and is wired in through API, entirely under our brand and yours. Nobody downstream, not your recipients, not your clients, not anyone outside this pipeline, ever sees the name of what's running underneath. It doesn't need to be seen to do its job.

Sending & sequencing engine

Mailheight

The platform every client campaign runs through: prospecting, validation, AI personalization, multi-step sequencing, and reputation protection, in one connected system with per-client data isolation.

FindVerifyPersonalizeProtectSendReply

The Hamcut Ecosystem

Seven checkpoints, in the order the work actually happens.

Cold outreach usually fails at whichever step got skipped. Each tool below sits at one checkpoint in the pipeline and hands its output straight to the next.

01 · Find

FindValidEmail

Finds a verified email from just a first name and a company domain, with a confidence score on every result.

02 · Enrich

Enricher

Confirms whether a contact still holds the title and company on file, and returns the update if not.

03 · Validate

InboxSense

Screens every list against 83 million known spam trap addresses before a single email goes out.

04 · Audit

DNSPulse

Pulls the full abuse history behind a sending address, not just today's blocklist status.

05 · Write

Writer

Turns long, messy content into short copy built to get read, for email, LinkedIn, or anywhere else.

06 · Score

Hamcut

Reads the tone of a message, scores it HAM or SPAM, and rewrites anything that would get filtered.

See the full ecosystem & ownership model

Diagnostics & forensics

Email Forensics

For when authentication passes and the inbox still says no. We trace the full header, SMTP, and infrastructure-reputation history behind a delivery problem until we find what's actually causing it.

Not sure which stage is breaking your outreach?

Send us a sample campaign. We'll trace it through the pipeline and show you exactly where it's losing.

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