87% lands in the inbox. Not spam.
The AI SDR loop only works if your email actually reaches a human. That means smart 21-day warm-up, automatic list cleaning before every send, and real-time blacklist monitoring. FirstSales ships all three. Most competitors skip them.
- 87% lands in the primary inbox. Industry average is 60-70%.
- Spam analysis catches triggers before you hit send.
- Blacklist monitoring runs in the background, 24/7.
- List cleaning included. Competitors charge +$47/mo extra.
$1 for 3 days · Cancel anytime · Live in 8 minutes
87%
Inbox placement
Under 2%
Bounce rate
21 days
Smart warm-up
Free
List cleaning
By the numbers
The numbers behind 87% inbox placement
Every number here is a direct input to whether your AI SDR books a meeting or lands in a folder nobody reads.
Industry average sits at 60-70% with basic warm-up tools.
Smart 21-day warm-up delivers 87% average placement, verified.
Without list cleaning, bounce rates average 5-8% and burn your domain.
Auto list cleaning before every send keeps bounces under 2%.
Most tools surface deliverability problems after 2 weeks of damage.
Real-time monitoring flags issues within 2 hours, not 2 weeks.
Competitors charge an extra $47/mo add-on for email verification.
Included in every plan. No add-on, no upsell, no gotcha.
How it works
From cold domain to 87% inbox in 4 steps
Setup takes 8 minutes. The hard parts, authentication, warm-up, list cleaning, run automatically from there.
Connect your email accounts
Link Gmail, Outlook, or any SMTP account in two clicks. No DNS panic, no IT team needed.
- One-click connection
- Gmail, Outlook, custom SMTP
- Unlimited accounts
We configure SPF, DKIM, DMARC
Authentication is set up for you automatically. Every email you send is verified from day one.
- Auto SPF configuration
- Auto DKIM signing
- DMARC policy applied
Smart warm-up builds your reputation
Human-like engagement patterns across Gmail and Outlook turn a cold domain into a trusted sender.
- Variable timing signals
- Gradual volume ramp
- Multi-provider coverage
Send on clean lists, monitor live
Every list is verified before it goes out. Blacklist monitoring runs in real time so you catch problems in hours, not weeks.
- Auto list cleaning before send
- Real-time blacklist alerts
- Hourly inbox placement score
$1 for 3 days · Cancel anytime · Live in 8 minutes
Deliverability engine
Every tool your AI SDR needs to reach a real inbox
The SDR loop finds leads, writes, and follows up. This engine makes sure the email actually arrives.
Blacklist monitoring
By the time you notice a blacklist hit, your domain reputation is already damaged.
Runs 24/7 in the background. Alerts you within hours so you can act before campaigns are hurt.
Spam content analysis
Spam trigger words and bad image ratios are invisible until your open rates crater.
Scans subject lines and body copy before you send. Plain-English fixes, not cryptic scores.
Real-time inbox score
Static monthly reports miss the window when you could still fix the problem.
Updated hourly. See placement by provider so you know exactly where Gmail vs Outlook stands.
21-day smart warm-up
Basic warm-up bots send identical patterns that email providers flag within days.
Variable timing, realistic replies, gradual ramp. Builds genuine sender trust over 21 days.
Auto list cleaning
Every invalid email you send chips at your sender score. Competitors bill this separately.
Runs before every send. Strips invalid addresses, spam traps, and dead inboxes automatically.
SPF / DKIM / DMARC
Misconfigured authentication is the single fastest way to land in spam permanently.
Configured for you on setup. Checked on every send. No DNS panic, no manual steps.
Provider breakdown
A 70% overall score hides the fact that Outlook is delivering 40% of your emails to junk.
Placement split by Gmail, Outlook, Yahoo, and 50+ providers so you fix the right thing.
Automated recurring tests
One-off tests miss gradual reputation decay between campaigns.
Schedule daily or weekly tests. Automated rules can pause campaigns if placement drops below your threshold.
Historical tracking
Without a trend line you cannot tie a placement dip to a specific campaign or change.
Every test is stored. Correlate changes in placement with list swaps, new copy, or sending volume.
Spam analysis
Catch spam triggers before you hit send
SpamAssassin integration, subject-line scanning, URL reputation checks. Fix problems on the draft, not after your domain takes the hit.
SpamAssassin score
Hundreds of heuristic rules checked against your content
Subject line analysis
Detects trigger words and punctuation patterns
Body content scan
Spam phrases, excessive caps, and formatting flags
Image-to-text ratio
Checks whether your email is too image-heavy
URL reputation
Every link verified against domain reputation feeds
Authentication check
SPF, DKIM, and DMARC all validated before sending
Recommendations
3 fixes to improve your score
Remove 'FREE' from subject line
Commonly flagged by spam filters. Use 'complimentary' or restructure the offer into the body.
Replace the shortened URL
One link uses a URL shortener. Shortened links are flagged by multiple providers. Use the full domain URL.
Cut the exclamation marks to one
Your subject line has 3. Every additional one lowers your score. One is fine, three is a spam signal.
Fixing these 3 issues raises the SpamAssassin score from 1.2 to under 0.5, putting you well inside the safe zone for every major provider.
Comparison
They send. We run the whole loop and land it.
Instantly, Lemlist, and Woodpecker focus on sending volume. FirstSales adds the deliverability engine, lead finding, and meeting booking that make the loop complete.
| Feature | FirstSales | Instantly | Lemlist | Woodpecker |
|---|---|---|---|---|
| 87% inbox placement | ||||
| 21-day smart warm-up | ||||
| List cleaning included (no add-on) | ||||
| Blacklist monitoring | ||||
| Spam content analysis | ||||
| Real-time inbox score | ||||
| SPF / DKIM / DMARC setup | ||||
| Provider breakdown (50+) | ||||
| Meeting booking built in | ||||
| Web scraping for lead lists | ||||
| Starting price | $29/mo | $47/mo | $39/mo | $49/mo |
| Trial | $1 for 3 days | 14 days | 14 days | No |
Your AI SDR is ready. Make sure it actually reaches people.
Founders and SDRs use FirstSales to hit 87% inbox placement. Plans from $29/mo. List cleaning included. Competitors charge $94-358/mo and bill list cleaning on top.
FAQs
Everything you need to know about warm-up, list cleaning, blacklist monitoring, and how FirstSales keeps 87% of your cold emails out of spam.
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General
Deliverability
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