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Built for SaaS founders & sales teams

The AI cold email engine that books SaaS demos while you ship

Stop watching cold emails die in spam. FirstSales warms your domains, personalizes every message from your product knowledge base, and follows up autonomously — so your demo calendar fills while you build.

  • 87% primary-inbox placement vs the 60-70% SaaS senders settle for
  • AI writes every email from your product positioning, not generic templates
  • Autonomous follow-up books demos without a single manual touch
  • Launch in 8 minutes, unlimited mailboxes, from $29/mo

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Trusted by SaaS founders and sales teams runningoutbound that actually lands
app.firstsales.io
FirstSales running autonomous cold email outreach for SaaS

Why SaaS teams switch

Outbound that sells software, not spam

SaaS buyers are flooded with cold email. The ones that get replies land in the inbox, speak to a real problem, and follow up. FirstSales does all three automatically.

Lands in the primary inbox

21-day AI warm-up, free list cleaning, and SPF/DKIM/DMARC done right push you to 87% inbox placement — so your pipeline isn't capped by the spam folder.

Speaks your product

The AI writes from a knowledge base of your features, ICP, and positioning, so every email reads like your best AE wrote it — at the volume of a whole team.

Books demos on autopilot

It follows up until the prospect replies or books, then routes the reply to you. You wake up to a calendar ofqualified demos.

How it works for SaaS

From cold list to booked demo in three steps

Point FirstSales at your ICP and let the AI run the outbound motion your SaaS team never has time for.

Step 1

Connect your mailboxes and warm up

Plug in your sending accounts and let the 21-day AI warm-up build sender reputation with real conversations before a single prospect is touched.

Unlimited Google and SMTP/IMAP mailboxes Add as many sending accounts as your SaaS team needs, no per-seat cap.

21-day automated reputation warm-up Builds inbox trust via real conversations before any prospect is touched.

Guided SPF, DKIM, and DMARC setup Step-by-step authentication setup catches every misconfiguration before sending.

Read the docs

FirstSales connectors screen with SaaS sending mailboxes warming up
Step 2

Feed the AI your product knowledge

Drop in your positioning, features, ICP, and proof points. The AI uses your knowledge base to write personalized outreach that sounds like your team — not a template.

Per-workspace product knowledge base Your features, ICP, and proof points stored and referenced on every send.

AI personalization from real prospect data Each email reflects the prospect's stack, role, and relevant pain.

On-brand copy at full sending volume Tone and positioning stay consistent even at thousands of emails per week.

Read the docs

FirstSales knowledge base populated with SaaS product positioning
Step 3

Let it send, follow up, and book

FirstSales sends, monitors deliverability, and follows up autonomously until the prospect replies or books a demo — then hands the conversation to you in a unified inbox.

Autonomous multi-step follow-up Sequences run until a reply or demo is booked, then stop automatically.

Real-time deliverability monitoring Flags domain health issues before they pull inbox placement below threshold.

Unified inbox with reply handling All prospect replies surface in one place, ready to hand off to your AE.

Read the docs

FirstSales unified inbox showing booked SaaS demos and replies

Proof, not promises

SaaS founders who let the AI run the outbound

Teams use FirstSales to run the cold outreach that used to eat their whole week, and get the replies to show for it.

Loved by founders & sales teams

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.

Pooja Dhole@ThisIsPoojaD
Open rate increased drasticallyEasy UI/UX for beginners
Read more customer stories

What you get

Everything a SaaS team needs to run cold email that converts

Deliverability, AI writing, and automation in one platform — so you don't stitch together a verifier, a warm-up tool, and a sequencer just to get a reply.

Deliverability

Land in the inbox, not promotions

Warm-up, free cleaning, authentication, and live monitoring protect every domain so your SaaS outbound stays in the primary inbox at scale.

21-day smart warm-up Ramps sending volume gradually so inbox providers trust your domain early.

Free automated list cleaning Removes invalid and risky addresses before they hurt your sender score.

Real-time inbox monitoring Alerts you the moment a domain drifts toward promotions or spam.

Read the docs

FirstSales deliverability dashboard for a SaaS sending domain
AI writing

Personalization that sounds human

The AI researches each prospect and writes from your knowledge base, so a 5,000-contact campaign reads like 5,000 one-to-one emails.

Knowledge-base-grounded copy Every email draws on your actual features and differentiators, not generic filler.

Per-prospect personalization Role, company size, and tech stack shape the message each contact receives.

Your voice, your positioning Tone mirrors your best AE, not a default AI cadence.

Read the docs

FirstSales AI composing a personalized SaaS cold email
Automation

Follow-up that never forgets

Multi-step sequences with smart stop-on-reply mean every prospect gets the follow-ups that actually book demos — without your team lifting a finger.

Autonomous follow-up sequences Each prospect moves through timed steps without a rep scheduling the next touch.

Smart stop-on-reply Sequence halts the moment a prospect responds, so no double-sends after interest.

Books demos around the clock Follow-up runs nights and weekends, catching prospects outside your team's hours.

Read the docs

FirstSales campaign sequence builder for a SaaS demo funnel

Before & after

What changes when SaaS outbound runs itself

The old way burns domains and reps. The FirstSales way fills the pipeline while your team focuses on product and closing.

Without FirstSalesThe manual outbound grind
Emails land in spam
Cold sends hit promotions or spam and your pipeline is capped before it starts.
Generic templates
Mass blasts ignore the prospect's product and stack, so reply rates flatline.
Follow-ups slip
Busy reps forget to follow up, and most of the pipeline dies in the gap.
Burned domains
Aggressive sending without warm-up torches sender reputation and your domain.
Stitched-together tools
A verifier here, a warm-up tool there, a sequencer somewhere else — and a bill to match.
Expensive SDRs
A human SDR costs $5k+/mo with a 3-month ramp before a single booked demo.
With FirstSalesAutonomous, inbox-landing outreach
87% inbox placement
Warm-up, cleaning, and authentication keep you in the primary inbox at scale.
AI-personalized at scale
Every email is written from your knowledge base to the specific prospect.
Autonomous follow-up
The AI follows up until a reply or a booked demo — nothing slips.
Protected reputation
Smart throttling and live monitoring keep every domain healthy.
One platform
Deliverability, AI, and automation in a single tool from $29/mo.
No ramp, no salary
Launch in 8 minutes and run an SDR's motion for a fraction of the cost.

How we compare

FirstSales vs the tools SaaS teams usually stack

Most SaaS teams duct-tape a sending tool to a verifier and a warm-up service. FirstSales does all of it — and writes the emails too.

Compared with typical cold email and sales-engagement tools.
What mattersFirstSalesOther tools
Primary-inbox placement87% average60-70%, no guardrails
21-day AI warm-upIncludedPaid add-on or none
Free list cleaningIncludedPay a separate verifier
AI writes from your knowledge baseIncludedStatic templates
Autonomous follow-up to booked demoIncludedManual sequences
SPF / DKIM / DMARC guidanceIncludedLeft to you
Unlimited mailboxesIncludedPer-mailbox pricing
Entry price$29/mo$80-200+/mo stacked

Fill your SaaS demo pipeline on autopilot

Let the AI warm your domains, write from your product, and follow up until the demo is booked. Start free in 8 minutes.

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FAQs

Everything about cold email for SaaS

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