Built for early-stage founders doing outbound solo
The AI that runs founder-led outbound when you have no SDR and no time
You need pipeline now, but you can't afford a sales team and you can't burn your only domain. FirstSales warms your inbox, personalizes every email, and follows up autonomously — so meetings get booked while you build the product.
- 87% primary-inbox placement, so your one shot at a prospect actually lands
- AI writes each email from your pitch — no agency, no SDR, no templates
- Autonomous follow-up books meetings without stealing your build time
- Launch in 8 minutes, unlimited mailboxes, from $29/mo
No credit card required · Cancel anytime · Setup in 8 minutes
Why founders start here
Founder-led outbound, without the founder
Early-stage outreach fails for three reasons: it lands in spam, it reads like a template, and the founder is too busy to follow up. FirstSales fixes all three so you can stay heads-down on the product.
Protects your only domain
21-day AI warm-up, free list cleaning, and SPF/DKIM/DMARC done right push you to 87% inbox placement — so you don't torch the one domain your whole company sends from.
Writes like the founder
The AI learns your pitch, your ICP, and your story from a knowledge base, then writes outreach that sounds like you wrote it personally — to every design partner, customer, and investor.
Books meetings while you build
It follows up until the prospect replies or books, then drops the reply in your inbox. You stay shipping and still wake up to a calendar ofreal conversations.
How it works for founders
From empty pipeline to booked calls in three steps
Point FirstSales at the customers, partners, or investors you need to reach and let the AI run the outbound motion you don't have time — or a team — to run.
Connect your inbox and warm it up
Plug in your founder mailbox and let the 21-day AI warm-up build sender reputation with real conversations before you touch a single prospect — so your one domain stays safe.
Unlimited Google and SMTP/IMAP mailboxes Add secondary domains to protect your primary one as volume grows.
21-day automated reputation warm-up Builds trust with inbox providers through real back-and-forth before outreach begins.
Guided SPF, DKIM, and DMARC setup Catches authentication gaps that would otherwise land your founder emails in spam.
Teach the AI your pitch
Drop in your positioning, your ICP, and why you matter. The AI uses your knowledge base to write personalized outreach to early customers, design partners, or investors — in your voice, not a generic template.
Per-workspace pitch and story knowledge base Your origin, traction, and differentiation anchor every outreach message.
AI personalization from real prospect data Each email reflects the recipient's company stage, role, or stated pain.
Founder voice at full sending volume Reads like you wrote it personally even at hundreds of sends per week.
Let it send, follow up, and book
FirstSales sends, monitors deliverability, and follows up autonomously until the prospect replies or books a call — then hands the conversation back to you in a unified inbox while you keep building.
Autonomous multi-step follow-up Sequences run while you build, requiring zero manual scheduling between touches.
Real-time deliverability monitoring Catches domain health dips before they cost you your only sending address.
Unified inbox with reply handling Interested replies surface in one place so you never miss a warm lead.
Proof, not promises
Founders who let the AI run the outbound
Early-stage founders use FirstSales to run the cold outreach they never have time for, and get the replies — and meetings — to show for it.
If you are looking to fix your sales pipeline, you should definitely try. @iuditg is the OG in cold emailing, and the product they have built- is futuristic and screams a deep understanding of email marketing. + My open rate has increased drastically, + The UI and UX are easy to understand, even for a beginner like me.
What you get
Everything a founder needs to run outbound without a sales team
Deliverability, AI writing, and automation in one platform — so you don't burn runway stitching together a verifier, a warm-up tool, and a sequencer just to get one reply.
Land in the inbox, not promotions
Warm-up, free cleaning, authentication, and live monitoring protect your domain so your founder outreach stays in the primary inbox — even when you're sending from the only address you have.
21-day smart warm-up Builds your domain's sending reputation before any real prospect receives a message.
Free automated list cleaning Strips bounces and traps from your list so your one domain stays healthy.
Real-time inbox monitoring Notifies you the instant your founder domain starts drifting toward spam.
Personalization that sounds like you
The AI researches each prospect and writes from your knowledge base, so a 500-contact campaign reads like 500 emails you wrote yourself — no agency retainer, no copywriter, no SDR.
Knowledge-base-grounded copy Your pitch, traction, and ICP drive each email rather than generic prompts.
Per-prospect personalization Investor context, customer pain, or partner fit shapes each individual message.
Your voice, your story Narrative stays consistent with how you actually talk about the product.
Follow-up that never forgets
Multi-step sequences with smart stop-on-reply mean every prospect gets the follow-ups that actually book calls — without you remembering to chase them between standups, builds, and fundraising.
Autonomous follow-up sequences Timed touches go out without you lifting a finger between build sprints.
Smart stop-on-reply Sequence pauses immediately when a prospect responds, keeping the conversation clean.
Books meetings around the clock Outreach continues while you sleep, so nothing stalls between your work sessions.
Before & after
What changes when founder outbound runs itself
The old way burns your domain, your runway, and your time. The FirstSales way fills the pipeline while you focus on the product and the raise.
- Emails land in spam
- Cold sends from a fresh founder domain hit promotions or spam, and your one shot is gone.
- Generic templates
- Mass blasts ignore who the prospect is and what you do, so reply rates flatline.
- Follow-ups slip
- You're shipping and fundraising, so follow-ups get forgotten and most pipeline dies in the gap.
- Burned domain
- Aggressive sending without warm-up torches the only domain your whole company runs on.
- Stitched-together tools
- A verifier here, a warm-up tool there, a sequencer somewhere else — runway you don't have.
- No SDR budget
- A human SDR costs $5k+/mo with a 3-month ramp — impossible before you've found product-market fit.
- 87% inbox placement
- Warm-up, cleaning, and authentication keep your founder domain in the primary inbox.
- AI-personalized at scale
- Every email is written from your pitch to the specific prospect — in your voice.
- Autonomous follow-up
- The AI follows up until a reply or a booked call — nothing slips while you build.
- Protected reputation
- Smart throttling and live monitoring keep your one domain healthy.
- One platform
- Deliverability, AI, and automation in a single tool from $29/mo.
- No SDR, no ramp
- Launch in 8 minutes and run a sales team's motion for the price of a coffee subscription.
How we compare
FirstSales vs hiring a team or stacking tools you can't afford
Most founders either pay for an SDR they can't justify or duct-tape a sending tool to a verifier and a warm-up service. FirstSales does all of it — and writes the emails too — for $29/mo.
| What matters | FirstSales | Other tools |
|---|---|---|
| Primary-inbox placement | 87% average | 60-70%, no guardrails |
| 21-day AI warm-up | Included | Paid add-on or none |
| Free list cleaning | Included | Pay a separate verifier |
| AI writes from your pitch | Included | Static templates |
| Autonomous follow-up to booked meeting | Included | Manual sequences |
| SPF / DKIM / DMARC guidance | Included | Left to you |
| Unlimited mailboxes | Included | Per-mailbox pricing |
| Cost vs an SDR | $29/mo, no ramp | $5k+/mo, 3-month ramp |
Book meetings before you can afford a sales team
Let the AI warm your domain, write from your pitch, and follow up until the meeting is booked — while you stay heads-down on the product. Start free in 8 minutes.
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FAQs
Everything about cold email for early-stage startups
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