Email Deliverability · warm-up + cleaning + auth + monitoring, in one platform
The complete email deliverability stack, in one platform
Most tools send your cold email and hope. FirstSales runs the whole deliverability stack underneath every campaign, 21-day smart warm-up, free list cleaning, SPF/DKIM/DMARC authentication, and real-time monitoring, so 87% of your email reaches the primary inbox instead of the 60-70% the industry settles for.
- 21-day smart warm-up that builds sender reputation the way inbox providers trust
- Free automated list cleaning that strips bounces and spam traps before you send
- SPF, DKIM, and DMARC authentication configured for you, no DNS headache
- Real-time monitoring across Gmail, Outlook, and Yahoo so you see where every email lands
$1 for 3 days · Cancel anytime · No deliverability add-ons to buy
The Deliverability Problem
Great cold email is worthless if it lands in spam
Deliverability isn't one setting you flip on, it's a stack. Reputation, authentication, list hygiene, and monitoring all have to work together, every single send. Skip one and your best campaign quietly disappears into the spam folder, and you never find out why.
Your Open Rate Is a Lie When Half Your Email Never Arrives
1 in 5 cold emails lands in spam (Mailshake 2025 Report), and the average sender sees only 60-70% reach the inbox at all. You measure replies against emails sent, but the real denominator is emails delivered to a human, and that number is far smaller than your dashboard suggests.
One Bad List Burns the Domain You Spent Months Building
Send to dead addresses and spam traps and inbox providers flag your domain fast. With no warm-up, no list cleaning, and missing SPF, DKIM, or DMARC records, a single aggressive campaign can torch a sender reputation that takes weeks to rebuild, if you can rebuild it at all.
We Run the Whole Stack, So You Don't Have to Stitch It Together
FirstSales handles warm-up, list cleaning, authentication, and live monitoring as one connected system underneath every campaign. The result isn't a slightly better open rate, it's an average of 87% reaching the primary inbox, the difference between outreach that works and outreach that talks to an empty room.
Deliverability on Autopilot
Inbox-ready in 8 minutes
There are no DNS records to research and no warm-up tools to wire together. Connect your inbox, let the stack do the work, and start sending knowing your email will actually arrive, then watch it stay there.
Build reputation and lock down your sending domain
Connect Gmail, Outlook, or any provider and the stack starts warming up your domain over 21 days while it configures SPF, DKIM, and DMARC for you. No DNS tickets, no guesswork, just a sender reputation inbox providers learn to trust.
21-day smart warm-up Reputation built gradually with real, AI-driven inbox activity.
Authentication configured for you SPF, DKIM, and DMARC set up automatically, no DNS edits.
Works with any inbox Gmail, Outlook, or any SMTP, connected in seconds.
Strip the bad addresses, then send into a clean inbox
Free list cleaning runs before every campaign, removing bounces, duplicates, role-based addresses, and spam traps so you never send into a minefield. Emails go out on a human-like schedule that protects the reputation you just built.
Free list cleaning, every send Bounces, traps, and dead accounts removed automatically.
Human-like send pacing Volume ramps the way real senders behave, not a blast.
Spam-trap protection Risky and catch-all addresses filtered before they cost you.
See where every email lands and stay protected
Real-time monitoring tracks inbox placement across Gmail, Outlook, and Yahoo, updated hourly. If a sender starts to slip, the stack flags it and pulls back automatically, so a dip never becomes a burned domain.
Live inbox-placement tracking See primary, promotions, or spam by provider, hourly.
Automatic reputation protection Sending pulls back the moment placement starts to dip.
One dashboard for every mailbox Monitor reputation across all your domains in one place.
Proof, Not Promises
Senders who stopped fighting the spam folder
Teams use FirstSales to get cold email out of spam and into the primary inbox, and the open rates show 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.
THE DELIVERABILITY STACK
Four deliverability tools. One connected platform.
Warm-up, list cleaning, authentication, and monitoring are usually four separate purchases that never quite talk to each other. FirstSales runs them as one system underneath every campaign, so your reputation only goes up.
It earns your sender reputation, then keeps it
Smart warm-up spends 21 days building domain trust with real, AI-driven inbox conversations, the gradual ramp inbox providers reward. It never stops working in the background, so your reputation holds even as your volume grows.
21-day smart ramp Trust built the way Gmail and Outlook actually reward.
Real AI conversations Warm-up that looks like genuine inbox activity, not noise.
Always-on protection Keeps warming as you scale, so reputation never slips.
It removes bad addresses and proves who you are
Free list cleaning strips bounces, duplicates, role-based, and risky addresses before they ever cost you a campaign. At the same time, SPF, DKIM, and DMARC are configured automatically, so inbox providers know your email is really yours.
Free email verification Bounces, traps, and dead accounts removed at no extra cost.
SPF, DKIM, DMARC done for you Full authentication configured automatically, no DNS work.
Clean list, proven sender Two of the biggest spam triggers, handled in one step.
It watches placement and protects you automatically
Real-time monitoring tracks where your email lands across Gmail, Outlook, and Yahoo, updated hourly. When placement starts to dip, the stack pulls sending back on its own, so a small problem never becomes a burned domain.
Inbox placement, by provider Primary, promotions, or spam, tracked hourly per mailbox.
Auto-protection on dips Sending slows automatically before reputation is damaged.
All domains, one view Monitor every sending domain from a single dashboard.
Before vs after the stack
Sending blind vs the FirstSales stack
Same cold email, two very different outcomes. Here's what changes when warm-up, cleaning, authentication, and monitoring run together underneath every campaign instead of being left to chance.
- 60-70% reaches the inbox, at best
- Up to a third of your email never arrives in front of a human.
- No warm-up, so domains burn fast
- Send hard on a cold domain and providers flag you in week one.
- Dirty lists trigger spam traps
- Bounces and dead addresses tank your reputation overnight.
- SPF, DKIM, DMARC half-configured
- Missing records send your email straight to the spam folder.
- No idea where email actually lands
- You see delivered, prospects see nothing, and you can't tell why.
- Deliverability sold as paid add-ons
- Warm-up and cleaning cost extra and never quite work together.
- 87% lands in the primary inbox
- The whole stack works to put email in front of real humans.
- 21-day smart warm-up built in
- Reputation is earned gradually before the first real campaign.
- Free list cleaning before every send
- Bounces, traps, and bad addresses removed automatically.
- Authentication configured for you
- SPF, DKIM, and DMARC set up correctly, no DNS headache.
- Real-time placement monitoring
- See exactly where every email lands, updated hourly.
- The full stack, no add-ons
- Warm-up, cleaning, auth, and monitoring in one platform.
Deliverability stack vs add-on stacks
FirstSales vs Instantly, Lemlist & Smartlead
Most cold-email tools treat deliverability as paid extras you bolt on and babysit. FirstSales runs the entire stack as one included system. Here's how the pieces actually compare.
| What real deliverability needs | FirstSales | Other tools |
|---|---|---|
| 21-day smart warm-up | Included | Paid add-on |
| List cleaning / email verification | Free | Paid add-on |
| SPF, DKIM, DMARC set up for you | Included | You do it |
| Real-time inbox-placement monitoring | Included | Varies |
| Automatic reputation protection | Included | Manual |
| Inbox placement rate | 87% average | 60-70% average |
| Entry price | $29/mo | $94-358/mo |
| Setup time | 8 minutes | Varies |
Get the whole deliverability stack for $1
Warm-up, list cleaning, SPF/DKIM/DMARC, and real-time monitoring, all in one platform, working to put 87% of your email in the primary inbox. No add-ons, no spam folder.
Start your $1 trial$1 for 3 days · Cancel anytime · 87% inbox placement
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