AI cold email
Personal cold emails at scale. Without burning your domain.
Your agents write one email at a time, from your knowledge base, in the lead's language. You approve what you want. EmailGuard checks everything else.
Approvals
Nothing leaves without your green light. Unless you say so.
Start in Validation: every email waits in a queue with the lead's context. When you trust an agent, switch it to Autopilot and it sends on its own, within quotas and sending hours.
Every email waits for your approval.
Queue 3
-
Romain Roux
just nowMistral Digital
Mistral Digital: are your campaigns really paying off?
-
Sarah Michel
just nowGaïa Agency
Gaïa Agency × Lumen: partner programme
-
Olivier David
just nowRevue Horizon
A data-backed guide for your e-commerce readers
All caught up
Inbox zero. Nice work, team!
Drafted by Léa
Lead score 71- To
- Romain Roux · Head of Sales, Mistral Digital
- Subject
- Mistral Digital: are your campaigns really paying off?
Hi Romain,
Brands like Mistral Digital recover 12% of their ad budget on average with Lumen, by finally seeing the real ROAS of every channel.
Open to a 20-minute demo next week?
Léa, Lumen Analytics
Email threads
Every reply sorted, with an answer ready.
Inbox sync every 5 minutes. Each reply is classified, the thread is handled by its agent, and an AI suggested reply waits for you: “Use this reply” or “Regenerate”. Take over in one click.
- “Handled by agent”, “Needs you” or “Taken over”
- Lead details and pipeline right next to the thread
- Manual replies go through the same guardrails
Mailboxes
Your own mailboxes, warmed up properly.
Connect Gmail with Google OAuth or any mailbox over SMTP/IMAP. New domains start low and climb a little every day. The health panel shows sends over 14 days, replies over 30 days, today's capacity and the bounce rate.
Sequences
Follow-ups that know when to stop.
Bump, value, breakup. Spaced in business days, written in context, and cancelled the moment a lead replies.
- 1
First email Day 0
One concrete observation about the company, one question. 80 words max.
- 2
Bump Day +3
A short, polite nudge in the same thread.
- 3
Value Day +7
A new angle: a case study, a number, a resource.
- 4
Breakup Day +14
Close the loop kindly. Doors stay open.
Warmup · new mailbox
Daily cap
10 → 50
+5 per day
until the mailbox limit
“Start low and raise the daily cap a little every day, to protect a new domain's reputation.”
EmailGuard
Deliverability is not an afterthought. It's a gate.
Every single email, from an agent, a routine or your own manual reply, goes through the same checks before it leaves. Your domain's reputation is protected by default.
- 0 /day
- per mailbox by default
- 0 /day
- per agent by default
- 0 min
- inbox sync interval
- 0 click
- unsubscribe, List-Unsubscribe header
Checking before send
to: [email protected]- Suppression list Unsubscribed, bounced or complained, by email or domain. PASS
- Lead status Never writes to a lead who unsubscribed or already replied. PASS
- Cross-agent dedup Another agent already contacts this lead? Skipped. PASS
- Quotas & warmup 50/day per mailbox, 30/day per agent, warmup +5/day. PASS
- Send window Mon–Fri, 09:00–18:00 in your timezone. PASS
- Human spacing 90 to 300 seconds between two sends, at random. PASS
- Autonomy Validation agents wait for your approval. PASS
Suppressions
One list nobody ever writes to again.
Unsubscribes, bounces and complaints are added automatically, by email or by whole domain. Add your own manually. One-click unsubscribe with a List-Unsubscribe header and a public unsubscribe page.
Suppressions workspace
Send less, but better. Let your agents write.
Set up your workspace and hire your first agents in minutes. No credit card needed.