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Four of the twelve categories in a working outbound stack exist for one purpose: making sure the email arrives.
Sending infrastructure, inbox warmup, deliverability verification, domain reputation. A third of the stack, and it produces no leads, no lists, and nothing you can show anyone. It just decides whether the other two thirds matter at all.
Almost nobody budgets that way. Most teams spend on data, buy a sequencer, and skip everything in between, then wonder why a campaign with good copy produced nothing.
The Outbound Sales Tool Stack Repository is a free, ungated breakdown of the tools needed to run cold email and LinkedIn outbound, mapped across three budget tiers with monthly costs, plus a method for running a first campaign almost entirely on free trials.
Here is what the three tiers contain, where the money actually goes, and which upgrade is worth paying for.
What you will find in this article
- The three stack tiers and what each one costs per month
- Which upgrade costs the most, and what it buys you
- The tool that is identical at every tier
- Why deliverability takes a third of the stack
- How to run a first campaign for under $10
- The order to buy things in
The three tiers
Annualized, that is roughly $2,200, $5,700, and $8,800 or more.
For context on the last number: our GTM Engineering Jobs Report found the median US GTM Engineer earns $160,000. The most advanced stack here costs about 5% of one salary. Tooling is almost never the expensive part of outbound.
The upgrade that costs the most is the first one
Basic to Intermediate is a 153% increase. Intermediate to Advanced is 56%.
That shape surprises people, because the Advanced tier looks far more sophisticated. It is. It just does not cost proportionally more, because by the Intermediate tier you have already bought the expensive things.
So what does that $285 a month actually buy?
Clay, which changes prospect research from manual list-building into enriched, programmatic list-building. Pipedrive, replacing a spreadsheet pretending to be a CRM. Prospeo alongside Findymail, so email finding stops depending on one provider's coverage. Warmup Inbox, replacing the warmup built into your sending tool. Outlook alongside Google Workspace, which spreads sending risk across two providers.
Notice what is not on that list.
The sender does not change until the top tier
Woodpecker sends the email at both Basic and Intermediate. Dux-Soup runs LinkedIn at both. The combined cold email plus LinkedIn motion is the same Woodpecker and Dux-Soup integration at both.
The entire middle upgrade goes into data and deliverability, not into the tool that pushes send.
That is the correct priority, and it runs against how most teams shop. A better sequencer does not fix a bad list or a cold domain. Better data and a monitored inbox will improve results on any competent sender.
The sender only changes at the Advanced tier, where Smartlead or Instantly enter, and where Lemlist consolidates email and LinkedIn into one system rather than an integration between two.
Make is the same at every tier
Twelve categories, three tiers, thirty-six cells. In exactly one row, the answer never changes.
Automation is Make at Basic, Make at Intermediate, Make at Advanced.
That is worth pausing on, because it tells you something about where sophistication actually lives in an outbound operation. It is not in the automation platform. A micro company wiring up its first workflow and an agency running outbound for thirty clients use the same tool. What differs is what they build with it.
If you are choosing where to invest learning time rather than money, this is the row to look at.
A third of the stack is deliverability
Four of the twelve categories exist purely so that messages land in an inbox:
Sending infrastructure. Google Workspace at Basic. Google Workspace plus Outlook at Intermediate, spreading risk across providers. At Advanced, a custom tracking domain so open tracking does not run through a shared domain that other senders may have damaged.
Inbox warmup. Basic uses whatever is built into the sending tool. Intermediate and Advanced both use Warmup Inbox, a dedicated tool, because built-in warmup is a feature and dedicated warmup is a product.
Deliverability verification. Confirming that messages actually reach the inbox rather than the spam folder. Warmup Inbox at the lower tiers, Instantly at Advanced.
Domain reputation. Mail Tester at Basic. Mail Tester plus Warmup Inbox at Intermediate. At Advanced it becomes a monitoring suite: Google Postmaster Tools, Sender Score, Warmup Inbox, and Mail Tester together.
Four categories, no leads produced, and they determine whether anything else in the stack has any effect. A campaign with a perfect list and excellent copy sending from a cold domain reaches nobody.
If your budget forces a choice between better data and better deliverability, take deliverability. Mediocre data delivered to an inbox beats excellent data delivered to spam.
The waterfall is the real Advanced upgrade
At Basic, email finding is Findymail. At Intermediate it is Findymail plus Prospeo. At Advanced it becomes a waterfall running across at least five tools: Prospeo, Findymail, Snov.io, Apollo, and Lemlist.
The logic is coverage. Every email provider has gaps, and the gaps differ. Running a contact through one provider might return an address 55% of the time. Running it through five in sequence, stopping at the first hit, pushes that considerably higher and costs credits only where earlier tools failed.
For a small campaign this is overkill. For an agency running thousands of contacts a month, the difference between 55% and 85% coverage is the difference between a viable list and a thin one.
Running your first campaign for under $10
The most useful page in the document is the one showing how to run a complete first campaign almost entirely on free trials.
Total: 32.50 PLN, which is under $10.
Two details in there are worth reading twice.
Do not send cold email from an @gmail address. The 32.50 PLN buys a mailbox on your own domain, which is the one thing you cannot fake. Sending outbound from a free Gmail address damages results immediately and marks you as an amateur to anyone technical.
Set up the warmup account on a personal Gmail address, then warm the sending address separately before it sends anything. Warming and sending are separate jobs, and the document sequences them correctly.
What this trial stack proves is that the barrier to running a first campaign is not money. It is knowing the sequence. Anyone can spend under $10 and find out within a month whether their offer gets replies, which is a far cheaper answer than committing to a $471 monthly stack first.
Buy in this order
If you are building from nothing, the sequence matters more than the specific tools.
Domain and mailbox first. Your own domain, a proper mailbox, SPF, DKIM, and DMARC configured. Nothing else works without this.
Warmup second, and give it two to four weeks before the first campaign. This is the step teams skip and the reason their first campaign underperforms.
A sender third. Any competent one. This is not where differentiation lives at the start.
Data fourth. Sales Navigator, then an email finder. Start with one provider and add a second when coverage gaps start costing you.
A CRM fifth. Airtable configured as a CRM is genuinely enough at the beginning. Move to Pipedrive when you have enough deals that a spreadsheet stops answering your questions.
Automation last. Make is powerful and will absorb unlimited time. Wire it in once the manual process works and you know what is worth automating.
Monitoring alongside everything. Mail Tester costs nothing and tells you within minutes whether your setup is broken.
Five mistakes worth avoiding
Buying the Advanced stack before validating the offer. A five-tool waterfall applied to an offer nobody wants produces expensive silence. Validate on the trial stack first.
Skipping warmup. The most common and most damaging error. A domain sending cold at volume from day one gets filtered, and recovering a burned domain takes longer than warming it properly would have.
Overinvesting in data, underinvesting in deliverability. Four of twelve categories exist to make messages land. Budget accordingly.
Adding tools instead of fixing the process. If replies are not coming, the problem is almost always the offer, the list, or the deliverability. It is rarely the sequencer.
Running one mailbox at volume. One inbox safely sends 30 to 50 emails a day. Scaling means more inboxes and more domains, not more emails from one address.
FAQ
Is the tool stack free? Yes. No form, no email required.
How much does an outbound stack cost per month? $186 at the basic level, $471 at intermediate, and from $733 at advanced, according to the pricing in this document.
What tools do I need to start cold email? A domain and mailbox, a warmup tool, a sending tool, a prospect data source, an email finder, and a CRM. The trial stack in the document covers all six for under $10.
Can I run cold email from Gmail? No. Send from a mailbox on your own domain. A Google Workspace seat costs about 32.50 PLN a month and is the minimum viable infrastructure.
How long should I warm a domain? Two to four weeks before the first campaign, and keep warmup running alongside sending afterwards.
What is an email waterfall? Running a contact through several email-finding providers in sequence, stopping at the first hit. It raises coverage well above what any single provider gives you and only spends credits where earlier tools failed.
Which tool should I learn first? Clay for data and Make for automation. Make is the one tool that is identical across all three tiers, which tells you it is worth the learning time at any size.
Is a spreadsheet enough as a CRM? Airtable configured as a CRM works at the basic tier and covers up to 1,000 records on the free plan. Move to Pipedrive when your deal volume outgrows it.
What to take away
A third of a working outbound stack exists to make messages arrive. That is the part teams cut and the part that decides whether the rest works.
The expensive upgrade is Basic to Intermediate, at plus 153%, and it buys data and deliverability rather than a better sender.
Make is identical at every tier. Sophistication in outbound lives in what you build, not in which automation platform you buy.
You can run a complete first campaign for under $10 using trials. Do that before committing to a monthly stack.
Even the most advanced stack here costs roughly 5% of one GTM Engineer's salary. Tooling is not the expensive part of outbound. Knowing the sequence is.
If you would rather have the stack built, configured, and running than assembled from a PDF, book a free consultation.
