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Growth Stack · turnkey · your own infrastructure

An outreach machine that costs like one subscription and does the job of three.

We source company databases, stand up your own mail servers with hundreds of warmed inboxes, and put an AI assistant on WhatsApp, Instagram and your site chat — all in one window. You get a working system and someone to run it, not another subscription with caps.

Deployment 7–14 days · warm-up 2–3 weeks · then it just runs

Stack specificationver. 18 / 2026
Companies sourced100,000 per month, from search databases
Mail inboxes100+ your own domains and server
Cost per inbox×64 cheaper than a Google inbox
Assistant channels3 in 1 WhatsApp · Instagram · website
Platform limitsnone only your server capacity
Monthly fee$20–49 / moby package · this set — $49
×64
cheaper per inbox
than Google Workspace
$0.0004
per company sourced
at 100k per month
~$3,400
saved in the first year
versus a stack of subscriptions
1 window
WhatsApp, Instagram and site chat
in a single inbox
§ 01 — The problem

You pay three vendors for what should be one system.

The typical cold outreach stack: a sending platform, separately purchased inboxes, and a separate contact database. Each piece has its own subscription, its own caps and its own price per contact. The moment you grow, the bill grows with you.

What a 100-inbox stack costs

$ per month · 100 inboxes · ~100k emails · platform + inboxes + data + 3 chat channels
SmartleadPro $94 + inboxes ~$150 + channels ~$45 (no chat in the platform)$289
InstantlyScale bundle $194 + inboxes ~$150 + channels ~$45$389
ReachinboxGrowth $75 + inboxes ~$150 + data ~$50 + channels ~$45$320
mercuryleadfull stack (package 03) · base package from $20$49

Public pricing verified on 16 Aug 2026. To be fair: all three platforms let you connect an unlimited number of inboxes — but they do not supply the inboxes themselves, you buy those separately from infrastructure providers (~$1–2.4 per inbox; Google Workspace charges $7). We deliberately use the cheapest scenario for them (~$1.5 per inbox). We also add chat channels separately: WhatsApp, Instagram and website chat do not exist in these platforms at all, so matching the functionality requires an extra omnichannel service — typically ~$15 per channel connection (market rates run $7–25 per agent plus channels as add-ons). With us all three channels are part of the stack, and WhatsApp runs on the same server, so it is already covered by its cost. On Google Workspace inboxes their totals rise to roughly $800–900, while ours stays $49 for the full stack.

Monthly difference
−$284
per month versus the average cost of their stack ($333) for the same functionality — chat channels included.
Cost per inbox / mo
×64
$7 per inbox at Google→ included in our fee
One server of yours and a few domains hold 100+ inboxes. At Google Workspace the price of a single inbox buys you exactly one (annual billing; $8.40 month-to-month).
Cost per sourced contact
$0.0004
$0.031–0.039 per credit at Instantly
100,000 companies a month once it runs on your own server capacity. No credits, no overage fees.
§ 02 — Modules

Three blocks. Take one, or all three.

Each module stands on its own: start with data, add mail a month later, bring in the assistant once replies start coming. Everything is deployed on your server and stays yours.

Module 01

Lead sourcing from search databases

A crawler walks public sources — maps, directories, registries, aggregators — using your filters: niche, city, country, company size, whether they have a website. What comes out is a clean list with contacts, not a raw dump.

  • Up to 100,000 companies a month — the limit is server capacity, not a pricing tier.
  • Validation and deduplication — mailbox existence checks, duplicates and junk removed before sending.
  • Enrichment — website, phone, socials, city, niche, language of correspondence.
  • Export anywhere — to your CRM (NetHunt, HubSpot, Pipedrive), Google Sheets, or straight into the sending queue.
Maps & directoriesCompany registriesNiche filtersEmail validationAuto-export to CRM
demo
mercurylead · sourcing run #4127
niche: coffee shops · country: Poland · 10–50 staff · has website
RUN
collected this run68,420 / 100,000
CompanyDomainEmailCityStatus
Kawiarnia Wisłakawiarnia-wisla.plbiuro@…Krakówvalid
Cafe Nowa Sp.cafenowa.plkontakt@…Warszawavalid
Bistro Zielonezielone.com.plinfo@…Gdańskchecking
Palarnia Kawy 24palarnia24.plhello@…Wrocławvalid
Kawa i Ciastokawaiciasto.pl—Poznańenriching
Sourcing panel: filters, run progress and validation status for every record.
Module 02

Your own mail infrastructure, warmed up

We stand up your mail server: domains, DKIM, SPF, DMARC, reverse records, dedicated IPs. Inboxes warm up automatically for weeks until they land in the Inbox consistently — only then do they go to work.

  • 100+ inboxes for the price of one Google seat — your own server and a few domains instead of $700 a month in Workspace.
  • Automatic warm-up — volume ramped gradually, mutual correspondence, climbing out of spam.
  • Rotation and limits — sends spread across inboxes and domains, with human-like pauses.
  • Your data — messages, replies and domain reputation belong to you, not to a platform.
DKIM · SPF · DMARCDedicated IPs2–3 week warm-upInbox rotationSpam monitoring
demo
mercurylead · mail node mail-01 — 120 inboxes
active inboxes120
■ live 92■ warming 18■ reserve 10
inbox placement98.2%
bounce rate0.4%
spam complaints0.02%
sent today1 240 / 2 000
replies this week184
delivery, %
Mail node: the state of every inbox, deliverability metrics and the warm-up curve.
Module 03

AI assistant: WhatsApp, Instagram and site chat in one window

Replies from every channel land in one inbox. The assistant answers on its own — in the customer’s language, from your knowledge base — qualifies the person, collects contacts and creates a CRM record. A human can take over any conversation in two clicks.

  • Real omnichannel — one customer history, even if they wrote on a messenger first and your site chat later.
  • AI or human — the mode switches per channel and per conversation.
  • Leads straight into CRM — name, phone, country, what they asked for and which channel it came from.
  • Nothing gets lost — if the AI is unavailable, a contact form takes over and a manager is notified.
WhatsAppInstagram DirectWebsite chatFiles & photosAuto-leads to CRM11 languages
demo
mercurylead · omnichannel inbox — 3 channels
+48 512 •••
Ile kosztuje wdrożenie?
IG@lena.brandhaus
can I see a demo?
SITEVisitor · Kraków
Do you work with EU clients?
+380 63 •••
Thanks, waiting for the invoice
Ile kosztuje wdrożenie i jak długo trwa?
Wdrożenie zajmuje 7–14 dni. Podstawowy pakiet startuje od $150 jednorazowo plus $20/mies. za administrację. Podać dokładną wycenę dla Pana branży?
Tak, poproszę. Paweł, +48 512 …
Dziękuję, Paweł! Przekazuję do menedżera — odezwiemy się dziś.
→ CRM: LEAD created · Paweł · +48 512 ••• · channel WhatsApp · language PL · “implementation, quote”
Inbox: channels are badged, the AI replies in the customer’s language, the lead goes to CRM automatically.
§ 03 — Instagram in detail

A comment under a post becomes a CRM lead. No manager involved.

The most expensive thing on Instagram is not ads — it is comments nobody answered in time. The assistant reads every one of them around the clock, replies publicly, opens a Direct conversation immediately and walks the person through qualification while the interest is still hot.

STEP 01

Reads comments

Watches every post and new comment 24/7 — including nights and weekends.

STEP 02

Replies publicly

A short, polite reply under the comment: other readers see that you are responsive.

STEP 03

Opens a Direct

Starts a private conversation right away — details never end up in the public feed.

STEP 04

Qualifies and hands over

Collects everything the manager needs, gathers contacts and creates a CRM record.

demo
Instagram · comments under a post
Seasonal jobs in Poland by the seaOpen hotel positions: waiter · cook · kitchen assistant. Salary 4,500–8,000 PLN. Official employment.
@d.melnyk_84just now
is this vacancy still open?
jobsline.euAI · 12 sec
Yes, hiring is open 🙂 We have messaged you on Direct — let's go through the details there.
Every comment is stored in the system. Even if the author later deletes it on Instagram, the conversation and the lead stay with you.
Steps 1–2: the assistant spotted the comment and replied publicly in 12 seconds.
demo
Instagram Direct · @d.melnyk_84
Hello! I am the JobsLine assistant. Thanks for your interest — which position are you looking at?
Is the job by the sea in Poland still available?
Yes, hiring is open. Three quick questions: your citizenship, do you hold an international passport, and which months are you planning for?
Ukraine, passport yes. May to September. I worked as a cook for 3 years
Cook experience fits this vacancy. Please leave your name and phone number — a manager will match a hotel and send you the terms.
Dmytro, +380 63 217 ••••
Collected for the manager
citizenship · Ukraine passport · yes period · May–September experience · cook, 3 years contact · Dmytro, +380 63…
Step 3: a private dialogue — the assistant qualifies and collects exactly what the manager needs.
demo
CRM · new lead record
◉ INSTAGRAM Lead from a comment under a post
Seasonal jobs in Poland by the seaposted 15 Aug · 41 comments
“is this vacancy still open?”
@d.melnyk_84 · comment at 20:46
Dmytro M.record created automatically at 20:58
New lead
Phone+380 63 217 ••••
VacancyCook · hotel, Poland
CitizenshipUkraine
Documentsinternational passport
PeriodMay – September
Experiencecook, 3 years
LanguageUkrainian
Lead journey · 12 minutes
Comment under an Instagram post20:46
Assistant replied publicly20:46
Assistant opened a Direct chat20:47
Qualified, contacts collected20:58
CRM record · source “Instagram Assistant”20:58
Step 4: the manager opens the record and simply calls — nothing to ask twice.

What the assistant actually does on Instagram

everything runs on your own account, no third-party blasting tools
  • Comments under every post — new and old ones, including sponsored posts.
  • Public reply — short and polite, with no prices or personal data in the feed.
  • Automatic move to Direct — the private chat opens by itself while the person is still online.
  • Qualification — citizenship, documents, experience, preferred period and destination.
  • The customer's language — it answers in whatever language they wrote in (11 languages).
  • Handover to a manager — a CRM record with the full transcript and the source tagged.
  • Escalation — a hard question or a hot lead goes to a human immediately.
Reply to a comment
12 sec
Instead of “tomorrow morning, if we notice it”. Response speed decides whether the person ever reaches a conversation.
Comment → CRM lead
12 min
All qualification happens without a manager — they receive a finished record with contacts.
Running
24/7
Nights, weekends, the spike after an ad goes live — no comment is left unanswered.
We will estimate how many leads your niche can produce — free.
Send us your niche and geography. We come back with a configuration, the size of the addressable database and an exact monthly figure. If the audit shows you do not need this, we will say so plainly.
Get an estimate →
§ 04 — Economics

Why your own infrastructure wins on the numbers.

Subscriptions charge for every inbox, every contact and every cap. A server charges for capacity — and never asks how many emails you send. Here is how that plays out over the first year.

Cumulative savings over 12 months

$ · the gap between their stack (averaging $333/mo) and mercurylead (full stack, $49)
$3.4k$2.6k$1.7k$850$0 mo 1mo 6mo 12 $3,408 $284

Calculated for 100 inboxes using the cheapest scenario for the competitors (inboxes at ~$1.5) plus a separate omnichannel service for three channels (~$45). On our side everything is included, $49 for the full stack (base package from $20). On Google Workspace inboxes the yearly gap exceeds $8,000. Overage charges on contact limits are not included.

Inboxes: 100 / mo
$700 → 0
Google Workspace charges $7 for each (annual billing) — $700 a month for a hundred. With us those hundred inboxes live on your server and are already covered by the fee.
Data: 100,000 companies
$40
That is what the same volume costs once it runs on your own server capacity. At Instantly credit rates ($0.031–0.039 per contact) it would run over $3,000.
What you get in return
100%
Servers, domains, data, correspondence and configuration stay yours. If you ever leave, all of it goes with you.

100 mail inboxes: what they cost per month

public rates verified 16 Aug 2026 · the same hundred inboxes, three ways
Google Workspace Business Starter$8.40 per inbox on monthly billing$840
Google Workspace, annual billing$7 per inbox$700
Zoho Mail Lite$1 per inbox (annual), $1.25 monthly$100
Your own inboxes on your serverthere is no per-inbox charge at all$0

Zoho really is cheap — and it is only fair to show that. But even Zoho charges per inbox: add another hundred and you pay twice as much. On your own server inboxes are not metered at all: you create as many domains and addresses as you need, and you pay only for the server that already runs your outreach. In other words, the mail capacity itself costs $0. Sources: workspace.google.com/pricing, zoho.com/mail/zohomail-pricing.html

§ 05 — Who this is for

Honestly: it is not for everyone.

The stack pays off where you go and find customers rather than wait for enquiries. If your case is on the left, we can size it in a day. If it is on the right, we would rather tell you upfront than take your money.

A good fit if you are

  • An agency or recruiter — constantly looking for new clients or candidates across several countries.
  • Selling B2B services — long cycle, deals closed through conversation, not a shopping cart.
  • Already tried cold email — and keep hitting limits, inbox costs or spam folders.
  • Running Instagram or WhatsApp — and can see that some enquiries go unanswered.
  • Have someone to call — a manager who will work the finished leads.

Not a fit if

  • You need sales “by tomorrow” — inbox warm-up honestly takes 2–3 weeks.
  • Your niche is so narrow that fewer than 200 potential customers exist worldwide.
  • Nobody will work the leads — the system brings people in, it does not sell for you.
  • You want to buy a database once — we build a process, we do not sell files.
  • You need to email private individuals — we work only with public company contacts.

What it gives you in leads, not just in savings

example for 20,000 emails a month · industry benchmarks; your numbers depend on niche and offer

20,000
emails
per month
~98%
inbox
placement
1–3%
reply rate
on cold email
200–600
replies
per month
20–60
meetings
at 10% conversion

This is a benchmark, not a promise: conversion depends on your niche, geography, offer and how fast you call back. We are accountable for the infrastructure, deliverability and response speed — the parts that can actually be measured. Copy and offer we refine together over the first two months.

§ 06 — Comparison

mercurylead versus Smartlead, Instantly and Reachinbox.

These are good platforms — we are not pretending otherwise. The difference is the model: they sell access to their system with caps; we build your system without them and look after it.

CriterionmercuryleadSmartleadInstantlyReachinbox
ModelYour infrastructure + managementSaaS subscriptionSaaS subscriptionSaaS subscription
Mail inboxes100+ included in the feeUnlimited connections, but inboxes bought separately (~$1–2.4)Same: unlimited connections, inboxes separateSame: unlimited connections, inboxes separate
Own servers and IPsYes, yoursNoNoNo
Company data sourcingIncluded, up to 100k/moPartly: 30k verified prospect emails on ProSeparate credits, $47–197/moSeparately, on credits
Contact limitsNone (server is the limit)30k on Pro; unlimited from $1741k–100k per plan2k–200k per plan
WhatsApp assistantYesNoNoNo
Instagram DirectYesNoNoNo
AI chat on your siteYes, same inboxNoNoNo
Cost of chat channelsPart of the stack; WhatsApp runs on your own serverNot in the platform: separate service, ~$15 per channelNot available: separate service, ~$15 per channelNot available: separate service, ~$15 per channel
Chat leads into CRMAutomatic, tagged by channelNot availableNot availableNot available
Who sets it upWe do, turnkeyYou doYou doYou do
Who runs it afterwardsWe do, within the monthly feeYou doYou doYou do
Data and domain reputationYoursHeld by the platformHeld by the platformHeld by the platform
Total per month$49≈ $289≈ $389≈ $320
§ 07 — Pricing

Start with the base package at $150. Support from $20 a month.

Three packages, each one including the previous. Start with the first, see that it works, then move up a level and pay only the difference. Setup means turnkey deployment: servers, domains, integrations, training the assistant, migrating your data. After that it is a management fee of $20, $29 or $49 depending on the level.

Package 01 · base

Lead sourcing

$150
one-off · 3–5 days
then $20 / mo — support and source updates

Deploying the crawler, tuning filters to your niches, validation and export into your CRM.

  • Sources tuned to your niche
  • Validation and deduplication
  • Export to CRM / Sheets
Package 02 · package 01 +

Mail + lead sourcing

$390
one-off · 5–7 days + warm-up
then $29 / mo — for both areas together

Everything in package 01, plus your own mail: server, domains, DKIM/SPF/DMARC, 100+ inboxes, automatic warm-up and a sending queue.

  • Sourcing from package 01
  • 100+ inboxes, turnkey
  • 2–3 week warm-up
  • Human-like rotation and limits
Most popular Package 03 · packages 01+02 +

AI omnichannel + everything before

$490
one-off · 5–10 days
then $49 / mo — for the whole stack, and that is the ceiling

Everything in packages 01 and 02, plus the channels: WhatsApp, Instagram and site chat in one inbox, an assistant trained on your knowledge base, leads straight into your CRM.

  • Data and mail from packages 01–02
  • 3 channels, one window
  • Auto-created leads in your CRM
Monthly fee · one flat price

Support from $20 a month. The whole stack — $49.

You pay for the level: package 01 is $20, package 02 is $29, package 03 (the whole stack) is $49. And that is the ceiling — for that money you get more than the top subscription tiers offer: all three channels, full control of the infrastructure and no contact limits.

Prices do not add up — these are levels, not a sum. Package 02 already contains package 01, and package 03 contains both. So the whole stack is $490 one-off and $49/mo, not the sum of three price tags.

  • 24/7 monitoring — servers, deliverability, queues, channel health.
  • Updates and fixes — sending rules, the assistant’s knowledge base, new sources.
  • Monthly report — volumes, deliverability, replies, leads.
  • Support — questions and tweaks included in the fee.
  • Custom work — non-standard integrations and automations for your process are scoped and built separately.
$20–49/mo
$20 sourcing · $29 with mail · $49 whole stack
custom integrations quoted separately
Discuss a configuration

What each package includes

each package contains the one before it · prices do not add up
CapabilityPackage 01Package 02Package 03
Company sourcing from search databasesyesyesyes, up to 100k/mo
Validation, deduplication, export to your CRMyesyesyes
Your own mail inboxes (100+) and warm-up—yesyes
Rotation, sending queue, deliverability monitoring—yesyes
WhatsApp assistant——yes
Instagram: comments + Direct——yes
AI chat on your site, same inbox——yes
Automatic lead creation in your CRM——yes
Setup, one-off$150$390$490
Support, per month$20$29$49
Moving up a levelyou pay only the difference in setup · the monthly fee is replaced, not stacked

These are steps, not separate products: package 02 already contains everything in package 01, and package 03 contains both. So the full stack costs $490 one-off and $49/mo, not the sum of three price tags. Start with package 01 at $150, decide a month later to add mail — you pay the $240 difference and the fee becomes $29. Custom integrations and automations for your process are scoped and built separately — a one-off job, not a higher subscription.

The full stack is package 03
$490
one-off · then $49/mo
You never pay separately for packages 01 and 02 — they are already included. One deployment and end-to-end analytics from first email to closed lead.
Payback
≈ 2 mo
The $284/mo gap against subscriptions covers the full package ($490) in under two months.
§ 08 — Process

From first call to first replies — about a month.

Inbox warm-up cannot be rushed without hurting deliverability, so we honestly budget 2–3 weeks for it. Everything else runs in parallel.

01

Audit and plan

We look at your niche, geography, current tools and numbers. We size the capacity and show you the quote.

1–2 days
02

Deployment

Servers, domains, DNS records, inboxes, the crawler, assistant channels, integration with your CRM.

7–14 days
03

Warm-up and testing

Inboxes reach stable inbox placement, the assistant learns your materials, we polish the copy.

2–3 weeks
04

Running and support

The system runs, we monitor and improve it, you get leads and a monthly report.

ongoing
§ 09 — Trust

Why you can take our word — and where you should not have to.

We do not display other people's logos and we do not invent testimonials. Instead, three things you can verify yourself, right now.

Check 01

We run on it ourselves

The same stack powers our own projects: sourcing, mail nodes and an assistant across three channels. We do not sell what we have not run in-house.

Check 02

A live demo, not a slide deck

We share the screen and show a working system: the sourcing panel, a mail node with real deliverability figures and an inbox with three channels. Ask anything while it is on screen.

Check 03

Every figure is checkable

Competitor prices on this page come from their own pricing pages, with the date we verified them and links. Our deliverability numbers come from the panel you will see in the demo.

Audit and demo first. Money only once it is clear what for.
At the audit we either show you a concrete plan with numbers, or tell you honestly that your case does not need this.
Book an audit →
§ 10 — Questions

Straight answers to the awkward questions.

Why so cheap — what is the catch?

There is no catch, just a different model. Subscription services sell access to their infrastructure and price in a margin on every inbox and every contact. We install the same components on your server: hardware you pay for at cost directly to the host, and you pay us for setup and management. That is why volume stops driving the price.

Is sourcing company data legal?

We collect company data from public sources: corporate websites, directories, maps, public registries — business contacts of legal entities, not personal data of private individuals. Campaigns follow the rules for commercial messages: honest sender identification and a working unsubscribe from the very first email. We never use or sell leaked personal databases.

Will the inboxes end up in spam?

There is always a risk, and it is managed with engineering rather than promises: correct DKIM/SPF/DMARC, dedicated IPs, slow warm-up, human volumes and pauses, domain rotation, complaint monitoring. We only put inboxes to work after their deliverability is stable, and we retire any that degrade.

What if we decide to leave?

Everything stays yours: servers, domains, inboxes, data, correspondence and configuration. We hand over the credentials and documentation. That is the fundamental difference from a subscription, where cancelling costs you both the data and the reputation you warmed up.

Can we take just one module?

Yes. Most clients start with mail or the assistant and add sourcing once the niche is clear. Prices never add up: moving up a package costs only the difference in setup, and the monthly fee is replaced, not stacked ($20 → $29 → $49) — there is no per-module charge.

How much of my time does this take?

At the start — one 20–30 minute call and access credentials. After that we need answers on the offer (a few messages) and feedback once the first campaigns run. Everything technical — servers, domains, warm-up, assistant setup, monitoring — is on us. Your manager only calls the finished leads.

Is there a minimum term, and can we stop?

We do not lock anyone into contracts: the fee is monthly and you can stop whenever you like. The one honest warning is that stopping mid warm-up wastes the work already done on the inboxes, so the first six weeks are worth completing. All the infrastructure stays yours if you stop.

What if it does not work in my niche?

That is exactly why we start with a free audit: we check whether your niche has a large enough pool of companies in public sources and whether those people read email at all. If we see it will not work, we say so before you pay. If the stack is already running and replies are thin, we rework the copy and segments during the first two months within the fee — that is part of the job, not an extra service.

Can we start with just one part?

Yes, and most clients do. Yes — that is exactly why the packages are built as steps. Cheapest entry: package 01 (sourcing) at $150 one-off and $20 a month. Happy with the data? Move to package 02 and pay only the $240 difference; the fee becomes $29. Replies coming in? Package 03 is the whole stack at $49 a month, and it never goes higher.

Do you write the email copy and the assistant’s replies?

Yes — we prepare the initial sequences and copy, then refine them based on results. The assistant’s knowledge base is built from your materials: website, price lists, common questions, rules for saying no.

Next step

We will price your stack in 20 minutes.

Tell us your niche and geography — we come back with a configuration, the size of the database and an exact monthly figure. No hour-long presentations and no “leave a request, someone will call eventually”.

1
you send niche
and geography
24 h
we come back
with the numbers
20 min
live demo
on screen
your call
you decide,
no pressure
7–14 d
launch,
if we agree
We reply within one business day. Your details are used only to contact you.
or message us directly: WhatsApp ·