How to Actually Send
41,268 Emails.
Buying the data is the easy part. The difference between a campaign that books meetings and one that disappears is infrastructure and restraint. This is the exact setup we recommend: a dedicated sending platform such as Smartlead.ai, properly authenticated and warmed-up mailboxes, and a slow drip of roughly 15 emails per day per inbox.
Important: This page is operational guidance, not legal advice, and we are not affiliated with Smartlead.ai. Platform features change — always confirm current capabilities directly with the provider. You remain responsible for CASL compliance, sender identification and a working unsubscribe link in every message.
Deliverability Comes From Restraint,
Not From Pushing One Inbox Harder.
A mailbox firing hundreds of emails in a day gets flagged within 48 hours. The same mailbox sending fifteen, spaced out through the working day, looks like a normal professional at work. These are the numbers we recommend holding to.
15
Emails Per Day
Per individual sending account — the safe daily ceiling
2–4
Weeks of Warm-Up
Before a single real outreach email leaves the mailbox
60–180s
Between Sends
Randomised delay so the pattern never looks automated
<3%
Bounce Rate
Above this, pause the mailbox and clean the list
What 15 A Day Looks Like Per Mailbox
Warm-Up First
2–4 Wks
Per Day
15
Per 5-Day Week
75
Per Month
~300
Send weekdays only, in business hours, in the recipient's time zone. Weekend blasts are one of the loudest spam signals there is.
Setting Up Your First Campaign
Step by Step
Smartlead.ai is the platform we point people to most often because it handles mailbox purchasing, automatic warm-up, rotation and reply detection in one place. The workflow below applies to any comparable sending tool.
Buy your sending domains and mailboxes
Never send cold email from your primary company domain. Register 3–5 lookalike domains (yourbrand-data.com, getyourbrand.co, etc.) and attach mailboxes to those instead. Most sending platforms, Smartlead included, let you provision domains and mailboxes from inside the dashboard. If a sending domain ever gets burned, your real business email is untouched.
Authenticate every domain: SPF, DKIM, DMARC
This is non-negotiable. Google and Microsoft now reject or spam-folder bulk senders without all three records in place. Add them at your DNS provider before you send a single email, then use the built-in checker to confirm each mailbox passes. A missing DKIM record alone will sink an otherwise perfect campaign.
Warm up for 2–4 weeks before the first real send
Turn on automated warm-up on every mailbox and leave it running. The network sends and replies to messages between real inboxes, teaching providers that your addresses hold genuine conversations. Start real outreach at 3–5 emails per day per inbox and climb to 15 over three to four weeks. Warm-up should stay on permanently, running alongside your campaigns.
Import the dataset and segment before you write
Upload your CSV and map the columns — name, brokerage, city, email. Then segment: separate lists by region, brokerage size or confidence level. A message written for a downtown Toronto brokerage should not go to a rural independent agent. Filter on the confidence score first and send to the High and Very High records before the rest.
Build a 3–4 step drip sequence
One email is not a campaign. Send the first message, then wait 3 days, 4 days and 5 days between follow-ups. Follow-ups go in the same thread and stay short — two or three sentences. Most positive replies to cold campaigns arrive on the second or third touch, not the first. Set the sequence to stop the moment someone replies.
Set the daily limit and enable inbox rotation
Cap each mailbox at 15 sends per day, add a randomised 60–180 second delay between emails, and restrict sending to weekdays between 8am and 5pm local time. If you run more than one mailbox, attach them all to the campaign and let the platform rotate through them automatically — the load spreads evenly and no single account ever spikes.
Watch deliverability daily, not weekly
Track bounce rate, open rate and reply rate per mailbox. Bounce rate above 3% means pause and clean the list. A mailbox whose open rate collapses is landing in spam — pull it out of rotation, let warm-up run for a week, then reintroduce it. Run a monthly inbox placement test to confirm you are still hitting Primary rather than Promotions.
Why 15 Emails a Day
Is the Number.
Mailbox providers do not evaluate your list — they evaluate your behaviour. A real professional sends a modest number of individual emails through the working day. Fifteen sends, spaced out over eight hours, is indistinguishable from that.
Push a single account to 50, 100 or 300 a day and the pattern breaks. The sending curve goes vertical, the recipient domains all differ, the content repeats — and the account gets throttled, then filtered, then blocked. Recovering a burned domain takes weeks, if it happens at all.
Fifteen per inbox is the conservative ceiling that keeps an account healthy indefinitely. If you need more reach, add another warmed mailbox rather than raising the per-account number. The daily cap is the one rule you never bend.
Recommended Ramp Per Mailbox
Warm-up
2–4 weeks, no real outreach
Week 1
First live sends, highest-confidence records
Week 2
Watch bounce and open rates closely
Week 3
Pause any mailbox showing a drop
Week 4+
Steady state — hold here permanently
Set Up the Mailboxes.
Let the Software Manage Them.
Keeping several sending accounts healthy by hand is painful. Inside a sending platform it is a single screen. Smartlead.ai and comparable tools let you connect every mailbox to one campaign, hold each one to its daily cap, and rotate sends across the pool automatically.
Provision Properly
Set up your sending domains and mailboxes from inside the dashboard so DNS records and authentication are handled for you. Every new mailbox goes through the full warm-up period before it touches a real prospect — no exceptions, no shortcuts.
Rotate Automatically
Attach every mailbox to one campaign and the platform distributes each send across the pool. No account exceeds its 15-per-day cap, follow-ups continue from the mailbox that started the thread, and the load stays even.
One Unified Inbox
Replies from every mailbox land in a single master inbox. You answer from one screen, sequences auto-stop on reply, and positive responses get tagged so nothing gets buried across separate logins.
Spread your mailboxes across several different domains rather than stacking them all on one. If a single domain gets flagged, the rest keep sending.
Visit Smartlead.aiPrimary Inbox or Spam Folder.
This Is Make or Break.
Nothing else on this page matters if your emails do not reach the Primary tab. A campaign filtered to spam produces a 0% reply rate no matter how good the offer is — and you will never see an error telling you it happened. Two things decide the outcome: how many emails you send from one account per day, and the words you put in them.
Factor 1 — Daily Volume Per Account
Providers score sending behaviour per mailbox. Staying at or below 15 a day, on weekdays, in business hours, with randomised gaps between sends, keeps that score healthy. Spikes, weekend bursts and hundreds of identical sends from one address are the fastest route to the spam folder.
- Hard cap: 15 sends per day per mailbox
- Randomise 60–180 seconds between each send
- Weekdays only, 8am–5pm recipient local time
- Keep warm-up running permanently in the background
- Pause any mailbox above a 3% bounce rate immediately
Factor 2 — The Words You Use
Spam filters read your subject line and body for sales-pitch patterns. Promotional vocabulary, urgency language, money claims, heavy formatting and link stuffing all push a message out of Primary. Write like one professional emailing another, not like a broadcast.
- Plain text only — no images, no HTML templates
- One link maximum, and none at all in the first email
- Short subject lines, lowercase, no punctuation or emojis
- Under 120 words — long emails read as marketing
- Rotate 3–5 copy variations so sends are not identical
Words That Send You to Spam
Also avoid: ALL CAPS, multiple exclamation marks, coloured or oversized fonts, attachments, tracking-heavy link shorteners, and the word “unsubscribe” styled like a marketing footer.
Language That Lands in Primary
Personalise with the fields you already own — first name, brokerage, city. A first line that clearly could not have been mass-produced is the single strongest signal that this is a real one-to-one email.
Test Before You Scale
Before pointing 100 mailboxes at your list, run an inbox placement test through a seed-list tool. It shows you exactly which providers place you in Primary, Promotions or Spam. Fix the copy and the authentication records until you are landing in Primary consistently — then turn on full volume. Re-test monthly; deliverability drifts.
The Mistakes That Burn Campaigns
Almost every failed cold email programme fails for one of these reasons.
Sending from your main company domain instead of dedicated lookalike domains.
Skipping warm-up and going straight to full volume on brand-new mailboxes.
Uploading the entire list to a single mailbox and hitting send.
Image-heavy HTML templates with tracking pixels and five links.
One email with no follow-up sequence — most replies come on touch two or three.
Dedicated domains, authenticated, warmed up, capped at 15 sends a day each.
Plain-text emails under 120 words with a genuinely personalised opening line.
A 3–4 step sequence that stops instantly when someone replies.
Deliverability Is Only Half of It.
Every email you send in Canada must identify you, include a working unsubscribe mechanism, and rest on valid consent. Our dataset gives you a documented source URL for all 41,268 email records so you can assess CASL implied consent record by record before a single message goes out.
Read the CASL Compliance GuideYou Have the Playbook.
Now Get the Data.
41,268 email-enriched Ontario real estate professionals, every record with a documented source URL — ready to load into your sequence and drip out at a pace that keeps you in the Primary inbox.