A campaign strategist that writes hyper-personalized cold emails for every lead
No credit card required
Exports straight into your sending tool
Download a ready-to-send CSV. Map the columns. Launch. No switching tools.
Build a complete campaign, not a blank page
Tell MachFive about your business and it builds your entire campaign — market research, audience insights, and positioning, plus every asset your emails are built from. All shaped around your real offers and proof, not a generic template.
- Strategic foundation — market research, audience & positioning from your site
- Campaign assets — social proof, lead magnets, risk reversal & value props
- A campaign strategy mapping your offers & proof
Select your social proof
Case study — $192K in 5 months
How a DTC client drove $192K in attributed revenue.
Recommended for: Founders, DTC brandsTrusted by Shopify-first DTC brands
Repeatable angle-mapping and weekly scorecards.
Recommended for: Ecommerce marketers90-day proven-results pledge
A results-backed guarantee that builds buyer trust.
Recommended for: FoundersUpload your leads, personalized one by one
Drop in your leads — names, titles, companies, and any custom fields. Choose how it runs, and MachFive writes a structurally unique sequence for every lead in minutes, tailored to each prospect's profile. The more you give it, the sharper the personalization.
- Thousands of leads personalized in minutes from a single CSV import
- Configure lead enrichment, sequence length, call-to-actions & signatures
- Review and edit every email — you stay in control
| Lead | Company | Status |
|---|---|---|
S Sarah Chen sarah@fishqueenseafood.com | Fish Queen Seafood | Enriched |
M Marcus Reid marcus@apexlog.com | Apex Logistics | Enriched |
D Dana Brooks dana@aloebloom.com | Aloe Bloom | Enriched |
T Tom Becker tom@lattice.io | Lattice IO | Enriched |
R Renee Wu renee@brightside.co | Brightside | Pending |
Download, launch, land in the inbox
Export ready-to-send emails and launch in Instantly, Smartlead, or any sending tool. Every email is structurally unique, CAN-SPAM compliant, and spam-checked before export. Skip the spam folder and protect your domain.
Subject: Quick idea for Burbank
100% UNIQUEHi Sarah, You run a well-known, family-owned market in Burbank - nice work keeping fresh seafood and the Galley going since 1948. A quick look at your site and Google Business Profile shows a few quick improvements that could bring more local customer visits and catering leads. Can I send a quick SEO review for Fish Queen Seafood that highlights 3 fixes we can implement in a week? It's complimentary. Best, John Doe President | My SEO 2028 E 7th St, Suite 210, Austin, TX 78702 Reply with 'seafood' and I will not contact you again.
Inbox placement
Primary- Structurally unique for every lead — no templates, no spintax.
- Built around your positioning and tailored to each prospect's profile.
- CAN-SPAM compliant and spam-checked before export.
MachFive's emails aren't just faster — they're better
Every sequence is built around your strategic positioning and tailored to each prospect's profile. No templates. No spintax. No campaign fatigue from repetitive patterns.
Built for teams who take cold email seriously
Give your SDRs superpowers
Your reps are spending 30-50% of their time writing emails instead of having conversations. Or they're sending the same templates and watching reply rates drop. MachFive changes the equation.
Stop choosing between personalization and productivity. Get both.
What you getBuilt by GTM engineers
MachFive was built by the team behind a cold email agency that served 50+ clients across dozens of industries. Hundreds of campaigns have been written. What works and what doesn't has been learned firsthand.
MachFive started as an internal tool — the system that was needed when manually writing sequences at 2am. It isn't another AI wrapper; it's years of cold email work encoded into a system that writes better emails faster than manual writing ever could. Now it's available to everyone who takes cold email seriously.
Everything you need. Nothing you don't.
Hypersonic Processing
Upload thousands of leads and get unique sequences back in minutes. A multi-agent system works in parallel to deliver at speed.
Ready-to-Send Output
No spintax. No spam checking. No manual formatting. Download a CSV, map your columns, and launch.
Works With Your Tools
Instantly, Smartlead, Lemlist, Apollo, GMass, EmailBison — if it accepts a CSV, MachFive works with it.
AI Campaign Chat
Your 24/7 cold email strategist. Ask it to refine sequences, test new angles, or optimize underperforming campaigns.
Strategic Foundation
Market research, target audience analysis, and offer optimization — built into every campaign before a single email is written.
Your Data, Your Control
MachFive works with you, not instead of you. Review, edit, and refine at every step — it's a tool that makes you better, not an autonomous AI SDR.
Build your free campaign in minutes
Drop in your website and watch MachFive research, strategize, and write — for your business, your offers, your prospects.
No credit card required