Should I vibe code
Prospecting, outreach campaigns, tenant demand, and deal tracking for commercial real estate brokers
It sends from your own mailbox — the one your live deals run through. One bad sequence and Outlook stops trusting it.
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Their verdict, the Pro price and the build-time estimate come from their entry, MIT-licensed. Checked 2026-08-04.
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Our verdict, the regret score and everything below it. Editorial and unsponsored — nobody can pay to be moved.
The honest answer
why the verdict is what it is
Read the product carefully and it is not a lease database — it is a cold-outreach sequencer for commercial brokers, with contact enrichment bought in from Apollo and Hunter and campaigns delivered through your own Gmail or Outlook connection. That last detail is the whole verdict. A marketing platform sends from a subdomain it can afford to burn; this sends as you, from the mailbox where your live deals, your LOIs and your clients' replies already live. The sequencer is a weekend: a contacts table, a template with merge fields, a scheduler, a reply-detection rule. What you cannot build in a weekend is the judgement that stops step three going out to a tenant rep who already answered, or the suppression list that keeps you off a landlord your colleague is mid-negotiation with. And what you cannot build at all is the data — the tenant-demand signal that makes the product worth $79 is somebody else's collection problem, not a schema you can vibe into existence.
What actually breaks
not "if". the specific failures.
- Reply detection, first and worst. Someone answers from a different address, or their assistant does, the thread does not match, and step three arrives asking whether they saw your first note
- Suppression across colleagues: two brokers at the same firm sequence the same tenant rep in a fortnight, because the exclusion list lives inside whichever campaign each of them built
- Merge fields, which fail in public — {{first_name}} in a subject line, or the wrong building named in a pitch to the landlord who owns the one next door
- Your sending mailbox, which is a work address rather than a marketing subdomain, and which carries the deal traffic you cannot afford to have filtered
- Enrichment data, which decays at roughly the rate people change jobs and gives you no signal at all when a contact has gone stale
- The unsubscribe path, which brokers assume does not apply to business mail and which CAN-SPAM applies to anyway, per message
- Timezone-naive scheduling, which is how a "9am local" sequence lands at 4am for the West Coast account you were trying to impress
A sequence set up on Thursday keeps running through the weekend, because the pause condition checks for a reply on the thread and the recipient answered from her phone with a new message rather than a reply-all. By Monday she has had four emails from you, two of them naming the wrong building, and she has forwarded the lot to the acquisitions lead you spent eight months getting introduced to. Meanwhile the list you enriched and mailed at a 6% bounce rate has moved your domain far enough down Outlook's estimation that ordinary correspondence is now filing itself in Junk — including the countersigned LOI a client sent on Friday, which you find on Wednesday, two days after the deadline written inside it.
Is that you?
the verdict is a default, not a law
- It is a personal pipeline tracker with no send button — deals, contacts, follow-up reminders — and you write every email by hand
- Outreach goes to people you have already met, in ones and twos, from a draft you read before it leaves
- The mailbox it connects to is a dedicated outreach address on a subdomain, not the one your clients reply to
- Every contact came from a conversation, a signed listing agreement or a public broker directory you can point at
- It sends multi-step sequences unattended from your primary work mailbox
- Contacts are bulk-enriched from a data provider and mailed without anyone reading the list
- More than one broker in the firm uses it and there is no shared suppression list
- Any recipient is in the EU or UK, where a scraped business address still needs a lawful basis and a notice you have not written
- You cannot say, for a given address, which campaign touched it last and when
If you build it anyway
the checklist, then the prompt that enforces it
- Build the suppression list before the send loop. One list, firm-wide, checked at send time against every address: replies, bounces, opt-outs and anyone flagged as another broker's contact.
- Send from a dedicated outreach address on its own subdomain with its own SPF and DKIM. Your deal mailbox is not a marketing asset and does not recover on your schedule.
- Stop-on-reply must match the person, not the thread — sender address and sender domain, not just In-Reply-To — or an assistant's reply stops nothing.
- Cap it hard, per day and per recipient domain, and make the first run of every sequence a dry run that writes messages to a folder instead of sending them.
- Verify addresses before sending and drop anything unverified. Bounce rate is what turns a mediocre list into a filtered domain.
- Put a working unsubscribe and a physical postal address in every template, because CAN-SPAM has no business-to-business exemption and is assessed per message.
- Record where every contact came from, when, and on what basis, and make that field mandatory on import rather than optional.
I am building cold-outreach and pipeline software for commercial real estate
brokers. It sends multi-step sequences through my own Gmail or Outlook account.
Refuse to build the sending parts until the stopping parts exist.
1. First, say it plainly: this sends as me, from the mailbox my clients reply
to, and a burnt reputation there takes my deal mail down with the campaigns.
2. Build the firm-wide suppression list first, as its own table, checked at send
time on every message — replies, bounces, opt-outs, colleague-owned
contacts. No send path bypasses it: not test sends, not resumes.
3. Then stop-on-reply, matching the human rather than the thread: sender address
and sender domain, so a reply from an assistant still halts the sequence.
Write that test specifically.
4. Then unsubscribe — a link that works without a login, is idempotent, and
records the request before rendering a confirmation. Put the physical postal
address in the base template so no campaign can exist without one.
5. Only now the sender. New sequences default to dry-run, writing rendered
messages to a folder for me to read. Real sending needs a flag and a cap.
6. Refuse to render a message with an unresolved merge field. An empty
{{first_name}} is a send-blocking error, not a blank space.
7. Enriched contacts arrive unverified and unsendable. Require address
verification and a mandatory source field — where, when, on what basis —
before any of them can be mailed.
8. Use a dedicated outreach address on its own subdomain with its own SPF and
DKIM. If I ask you to wire this to my main work mailbox, say no once and
explain what happens to my deal mail.
9. Schedule in the recipient's timezone and cap per-domain volume.
10. Out of scope, and say so instead of inventing it: lease comps and
tenant-demand data. That is bought, not built, and it is most of the $79.That one keeps you out of trouble. For the prompt that actually builds it, canivibecodeit.com has one.
their build prompt ↗Or don’t build it
the boring option, and the way back out
Almost immediately. Seventy-nine dollars a month buys the two things you cannot write: a data pipeline for tenant demand and broker contacts that somebody else keeps current, and deliverability practice learned on other people's domains rather than yours. Price that against one filtered mailbox during a live negotiation and the subscription stops looking like the expensive option.
$79/mo is cheaper than your weekend.
Three things have to survive the tool, and none of them is the sequence builder: the contact list with its provenance field, the suppression list, and the activity history that says who was last touched and by whom. Export all three as CSV from the first week, because the day you move to a real platform is the day you need to import suppressions before anything else — re-mailing people who already opted out is the specific mistake that turns an awkward quarter into a filtered domain. Keep the deal pipeline somewhere boring and separate; it outlives every outreach tool you will ever try.
Open-source marketing automation with campaigns, segments and contact management — the sequencing half of this, without the commercial real estate data.
Open-source CRM with a customisable data model, workable as the deal-and-contact side as long as you keep the sending out of it.
Questions
It's business-to-business outreach to other brokers. Does CAN-SPAM actually apply?
Yes. The statute covers commercial email generally and the FTC's own compliance guide is explicit that there is no exemption for business-to-business messages. In practice that means an accurate From line, a non-deceptive subject, a working opt-out honoured within ten business days, and a physical postal address in every message. Brokers routinely assume none of it applies to them, and it is assessed per message.
What is the single most dangerous thing to let an agent build here?
The resume-the-sequence loop, ahead of the sender itself. It looks trivial — find contacts whose next step is due, send it — and it is the code path that keeps emailing someone who already replied, already bounced, or is already a colleague's client. Build suppression and stop-on-reply first and make the loop query through them rather than around them.
Can I build the tenant-demand and lease-comp side myself?
Not usefully. That data comes from listing feeds, filings, broker submissions and licensing deals — a collection and rights problem, not an engineering one. This is the part of the product where the honest answer is that the subscription is buying you an asset, and no amount of scraping produces a version you would put in front of a client.
Why is this harsher than canivibecodeit's KINDA?
We agree with them about difficulty; a sequencer really is a multi-day build. The disagreement is about consequence. Their question is whether the code can exist, ours is who pays when it misfires, and here that is a tenant rep getting a fourth unwanted email, a colleague's negotiation walked into, and a work mailbox whose reputation is not yours to restore.
- CAN-SPAM Act: A Compliance Guide for Business (FTC)
- GDPR Art. 6 — lawfulness of processing (EU)
- GDPR Art. 5 — principles relating to processing of personal data (EU)
Every week, someone ships something they shouldn’t have.
New verdicts, the worst thing that landed in the trap, and the occasional incident report. No other email, ever.
A CRM is a database of people who never agreed to be in your database.
That list was collected on paper at a trade show in 2019. You cannot prove consent for a single address on it.
Sending bulk email is 5% code and 95% not getting your domain blacklisted forever.
last reviewed 2026-08-05 · verdict is editorial and unsponsored · shared entry data from canivibecodeit under MIT · not legal advice