Warmup ramp
Daily volume climbs on a schedule instead of spiking. New domains earn their capacity.
day 1
earned cap · day 12
AI campaign orchestration
A thousand emails.
Every one of them researched.
Interro reads each prospect before it writes to them — funding, hiring, engineering signals — then drafts an email grounded in what it actually found. Every personalized line shows its source. Then it sends, at a pace your domain can survive.
100 leads free · Google sign-in only · no card to start
A live demonstration follows: Interro resolves the prospect Sarah Chen at Northwind Logistics, gathers four signals about her company, and drafts a personalized email in which each highlighted phrase is traceable to the signal that produced it.
interro · research desk
Idle
Evidence
Draft
Researching, then writing — live.
01 — Research
It reads the room before it writes a word.
A lead arrives as an email address. It leaves as a briefed prospect. Interro pulls what is publicly true about the company and the person, and keeps the source attached to every fact.
- Funding, headcount, hiring, and engineering signals
- Every fact carries the page it came from
- Nothing worth saying? The lead is skipped, not padded
email
s.chen@northwind-logistics.com
name
Sarah Chen
role
VP Engineering
company
Northwind Logistics · 340 staff
funding
Series B · $40M · Mar 2026
hiring
12 backend & platform roles
stack
Aurora (migrated 6 weeks ago)
friction
warehouse API rate limits
02 — Write
Merge tags are not personalization.
Your template is the frame, not the message. Interro writes the opening from what it found, in the tone and objective you set for the campaign — and leaves the reasoning inspectable so you can tell whether it earned the send.
- Openers grounded in a specific, cited fact
- Tone, objective, and CTA set once per campaign
- Every claim traceable back to its evidence
Mail merge
Hi {{first_name}},
I came across {{company}} and wanted
to reach out about how we help
teams like yours scale.
Open to a quick chat?
Interro
Hi Sarah — congratulations on the $40M Series B. Scaling a platform team right after a raise is its own problem. You have 12 backend and platform roles open, and you moved off self-managed Postgres six weeks ago.
03 — Send
The fastest way to burn a domain is to send like nothing matters.
Domain readiness is a gate, not a suggestion. A campaign cannot launch until the sending domain verifies, and the queue is throttled in small batches so your reputation grows instead of collapsing.
- SPF, DKIM, and DMARC verified before a single send
- Warmup ramp instead of a cold blast
- Throttled queue, processed in small batches
Domain readiness
Domain added — send.northwind.com
Verified
SPF record published
Verified
DKIM record pending DNS
Checking
DMARC policy
Waiting
Launch campaign
Blocked
Deliverability intelligence
Sending is the part everyone gets wrong.
Most tools treat delivery as someone else's problem. Interro treats your domain reputation as the asset it is, and shows you the instruments while the campaign runs.
Throttled queue
Enrolled leads queue once and drain in small batches, so a large list never becomes a single burst.
Queue drained
420 / 1,000
Batching keeps per-hour volume inside your cap.
Suppression, honoured
Unsubscribes and hard bounces are permanent. A suppressed address is never enrolled again, in any campaign in the organization.
Unsubscribe honoured immediately
Hard bounces suppressed organization-wide
Positioning
Most sequencers automate typing. That was never the hard part.
Capability
Generic sequencer
Interro
Personalization
Merge tags
Per-prospect research
Where the claims come from
Whatever you typed
Cited, inspectable evidence
Domain readiness
A checklist you can ignore
A hard gate on launch
Volume ramp
A number you guess
Scheduled warmup
A lead with no signal
Sends anyway
Skipped
Pricing
Start on the free tier. Upgrade when the list outgrows it.
Enough to run a real campaign end to end.
- 100 leads
- 5 campaigns
- Shared sending domain
- Custom domain
Your own sending domain and a real batch size.
- 1,000 leads
- 10 campaigns
- 1 custom domain
- AI personalization
Research and personalization across the whole list.
- 10,000 leads
- Unlimited campaigns
- 5 custom domains
- AI personalization
Get started
Send your first researched campaign today.
Sign in with Google, create an organization, upload a CSV. The first hundred leads are free, and the research is included.