When we take over a dispensary email program, the first thing we do is a domain warmup. Across four recent takeovers, our warmup protocol has produced an average 96% open rate lift — rescuing buried domains and rebuilding sender reputation from the ground up. Real data from Alpine IQ.
A recreational cannabis dispensary was bleeding out on email. Six months earlier, the program had been healthy — 25% open rates across 2,000-send weekly campaigns. Then the trajectory went one direction: 20% in September, 15% in November, 10% in December, 2.23% by early January. By February 1, a single 64,171-send broadcast pulled a 0.55% open rate — effectively a buried domain. The welcome email was running at 0.31%. The inbox providers had stopped trusting the sending reputation, and every additional broadcast was making it worse. The question wasn't "how do we send more" — it was "how do we climb back from a domain that's been effectively blacklisted by Gmail and Apple Mail without wiping the list and starting over." We built a structured 5-phase warmup playbook to rehabilitate the sender reputation from the inside out.
Results at a Glance (Domain Warmup Playbook)
Pre-Warmup Open Rate
0.55%
On a 64,171-send blast (Feb 1)
Post-Warmup Open Rate
18.17%
On the first full broadcast (Apr 3)
Open Rate Lift
3,203%
From baseline to steady state
Warmup Duration
25 Days
Jan 30 → Feb 27 first branded send
Peak Warmup Open Rate
49.45%
Phase 3 engaged micro-segment
Sends Eliminated
97%
64,171 → 1,921 for the same opens
All figures pulled directly from the dispensary marketing platform's attributed reporting, covering the pre-warmup broadcast baseline, the full 5-phase warmup sequence, and the post-warmup campaign calendar.
The Open Rate Trajectory — Pre-Warmup, Warmup, Post-Warmup
Pre-Warmup Broadcast · Feb 1
0.55% Open · 64,171 Sends
Warmup Phase 1 · Jan 30
41.67% Open · 96 Sends
Warmup Phase 3 · Feb 13
49.45% Open · 273 Sends
Post-Warmup Broadcast · Mar 19
19.12% Open · 1,914 Sends
The shape of a successful domain warmup is counterintuitive. Phase 1 and Phase 3 produce the highest open rates because the sends go to the smallest, most engaged micro-segments — the customers inbox providers already trust. As the list expands in later phases, the open rate settles toward the natural cannabis industry baseline of 17-19%. The Mar 19 broadcast is the real success metric: a full-list send holding steady at 19.12% — 33x the pre-warmup baseline of 0.55%.
The 5-Phase Warmup Playbook
Phase 1 · Diagnose the Damage and Pause the Bleeding
The first step in any domain warmup is not sending — it's stopping. We paused the full broadcast calendar immediately and pulled six months of send history. The pattern was unambiguous: 25% open rates in August, sliding to 20% in September, 15% in November, 10% in December, 2.23% on January 9, then 0.55% on a 64,171-send Feb 1 broadcast. Every additional broadcast to the full list was making inbox placement worse. We held broadcasts and built a list of the 95 most-engaged subscribers from the last 30 days — the customers Gmail and Apple Mail already trust as legitimate recipients. That engaged micro-segment was the seed for the warmup.
Phase 2 · Start Impossibly Small With Your Most Engaged 5%
The first two warmup sends went to just 95–96 contacts each. Yes, 95. When a domain is on the edge of blacklist territory, inbox providers are watching engagement-per-send, not volume. The only way to prove legitimacy is to send to people who are definitely going to open. Phase 1 pulled a 41.67% open rate on 96 sends. Phase 2 pulled 48.42% on 95 sends. Every open was a positive signal to the mailbox providers, and the tiny volume meant that even a single spam report wouldn't tank the reputation curve.
Phase 3 · Double the List Only When Engagement Holds
The expansion rule was simple: double the send volume only if the prior send held above 30% open rate. Phase 3 went to 273 contacts and landed at 49.45% open. Phase 4 pushed to 225 contacts at 18.67%. Phase 5 expanded again to 683 contacts at 17.72%. The open rate was trending down toward the industry baseline — that's exactly what should happen. A successful warmup does not maintain 50% open rates forever. It walks down gracefully toward the natural engagement rate of a healthy full-list send, which for cannabis dispensaries is 17–19%.
Phase 4 · Relaunch the Branded Calendar With a Targeted First Send
On February 27, after 25 days of warmup, we resumed the branded calendar with a targeted Black History Month deals send. Critically, this was still a narrowed list of 405 highly engaged contacts — not the full database. It pulled a 75.06% open rate and 31,491% ROI. That send served a second purpose beyond revenue: it was the final deliverability confirmation that the warmup had worked. Sending 405 at 75% open rate is a stronger sender-reputation signal than sending 1,900 at 25%. Inbox providers saw a legitimate marketer sending to people who wanted to hear from them.
Phase 5 · Resume Full Broadcast Cadence — and Hold It
Starting March 6, we resumed the full broadcast calendar at roughly 1,900 sends per campaign. The numbers held exactly where we wanted them: 17.92% open on Women's History Month, 17.32% on St. Patrick's Day, 19.12% on a Ruby Farms pop-up, 18.28% on a comedy-show promo, 18.17% on Easter Sale. The full-list open rate has now held above 17% for five consecutive weeks. The dispensary is sending to 97% fewer contacts than the Feb 1 broadcast and producing the same absolute number of opens — 353 opens then, 349 opens now — while burning 97% less email credit and landing in the inbox instead of promotions or spam.
Key Takeaways
Sender reputation is the silent killer of dispensary email programs. The decline from 25% open rates to 0.55% took six months of broadcasting to disengaged contacts without noticing. Most operators don't see it until it's too late because the revenue drop lags the deliverability drop by weeks. Track your full-list open rate week-over-week. If it trends down for three consecutive sends, stop broadcasting and diagnose.
The first warmup send should be 1% of your list, not 10%. The biggest mistake in domain warmup is starting too big. Sending 500 contacts at 15% open rate does nothing for your reputation — you're just producing the same low engagement signal that tanked you in the first place. Start with the 95 people who opened your last three sends. Prove high engagement on tiny volume, then expand.
Don't panic when warmup open rates come down. Phase 1 was 41.67%, Phase 5 was 17.72%. That's not failure — that's the warmup working. The engagement rate on the tiny engaged micro-segment was always going to be higher than the engagement rate on the broader list. A warmup is complete when the full-list send holds at the natural industry baseline, not when it maintains 50% open rates forever.
The same number of opens on 97% fewer sends is not a loss — it's the goal. The Feb 1 broadcast produced 353 opens from 64,171 sends. The Apr 3 broadcast produced 349 opens from 1,921 sends. Same real audience, 97% less credit burn, and inbox placement instead of promotions folder. Efficiency is the metric, not volume.
Warmup is 25 days, not 3 days. Most operators try to rescue a buried domain with a weekend of "send less and see what happens." That doesn't work. Inbox providers need to see sustained positive engagement signals across multiple sends over multiple weeks before they restore trust. Budget 3–4 weeks for a full warmup and don't rush the expansion cadence.
Three More Warmup Wins — Q1 2026
The Queens dispensary warmup above was our most dramatic rescue — a domain on the edge of blacklist territory. But most warmups don't start at 0.55%. They start at 10–17% open rates where the previous operator was doing just enough to keep the lights on but leaving massive engagement on the table. Here are three dispensary accounts Gold Standard took over in early 2026, each put through our warmup protocol with Alpine IQ data to prove the lift.
Trends LIC — Long Island City, NY
+176% Open Rate Lift · +100% Revenue Per Send
Before (All-Time Avg)
12.36%
Open rate pre-takeover
After (Last 30 Days)
34.18%
Open rate post-warmup
Open Rate Lift
+176%
From 12.36% → 34.18%
Rev/Send Before
$0.41
All-time trailing average
Rev/Send After
$0.82
Last 30 days post-warmup
Click Rate Lift
+94%
0.48% → 0.93%
Alpine IQ attributed data. 44,753 email sends over the trailing 30-day window.
Trends LIC — Campaign-by-Campaign Open Rates (March 2026)
Mar 2
39.84%
Mar 6
36.92%
Mar 13
28.88%
Mar 20
28.54%
Mar 24
25.97%
Mar 27
30.29%
Trends LIC started with a tight engaged segment in early March, opened at nearly 40%, and held above 25% as volume expanded — the textbook warmup curve. The all-time trailing average of 12.36% included months of pre-Gold Standard sends that were dragging down the numbers. Within 30 days, the domain was performing at nearly 3x the inherited baseline.
Trends LIC was sending to their full list at 12% open rates when we took over. The previous operator had no segmentation, no engagement-based suppression, and no warmup protocol. We cut volume by 85%, sent exclusively to 90-day engaged openers for the first two weeks, then gradually expanded. The result: 34.18% open rate across all sends in the trailing 30 days, $0.82 revenue per send (doubled from $0.41), and 556 attributed conversions on $36,715 in email-attributed revenue.
Stoops NYC — New York, NY
+96% Open Rate Lift · +221% Revenue Per Send
Before (All-Time Avg)
11.80%
Open rate pre-takeover
After (Last 30 Days)
23.15%
Open rate post-warmup
Open Rate Lift
+96%
From 11.80% → 23.15%
Rev/Send Before
$0.14
All-time trailing average
Rev/Send After
$0.45
Last 30 days post-warmup
Click Rate Lift
+69%
1.34% → 2.26%
Alpine IQ attributed data. 27,739 email sends over the trailing 30-day window. Campaign labeled "GOLD STANDARD Warm Up" visible in Alpine IQ.
Stoops NYC — Campaign-by-Campaign Open Rates (March 2026)
Mar 7
25.51%
Mar 15
30.15%
Mar 19 (Segmented)
22.43%
Mar 27
30.85%
Stoops NYC shows the ideal warmup arc: early sends to engaged segments holding 25-31%, then expanding volume while maintaining 22%+ open rates even on broader segments. The failed-send rate dropped to 2.33%, confirming the domain was re-establishing inbox trust with major providers.
Stoops was sending to their full list at sub-12% open rates with a high bounce rate and no engagement suppression. The campaign in Alpine IQ is literally labeled "GOLD STANDARD Warm Up" — that's how immediately we stepped in. We cut volume, isolated engaged openers, and rebuilt frequency over three weeks. The result: 23.15% open rate (nearly double), $0.45 revenue per send (tripled from $0.14), 297 conversions, and $12,611 in attributed revenue in 30 days. Failed sends dropped to 2.33%.
Smacked Village — New York, NY
+17% Open Rate Lift · Early-Stage Warmup in Progress
Before (All-Time Avg)
17.05%
Open rate pre-takeover
After (Last 30 Days)
19.99%
Open rate post-warmup
Open Rate Lift
+17%
From 17.05% → 19.99%
Email Sends
7,654
Trailing 30-day window
Conversions
25
Email-attributed
Revenue
$1,689
Email-attributed (30 days)
Alpine IQ attributed data. Warmup still in early stages — the pre-takeover Feb 1 "Midday Magic" send registered 0 sends/0% open, indicating the account was effectively dormant.
Smacked Village — Campaign-by-Campaign Open Rates (March 2026)
Feb 1 (Pre-Warmup)
0%
Mar 6
18.07%
Mar 15
17.22%
Mar 19
18.97%
Mar 27
17.97%
Smacked Village is earlier in the warmup cycle. The pre-takeover account was effectively dormant (a Feb 1 "Midday Magic" send registered 0 sends). We rebuilt from scratch, and every post-warmup campaign is holding at or above the industry baseline of 17-19%. This is an email-only account with no SMS channel yet — additional lift expected as we expand the channel mix.
Smacked Village is the earliest-stage warmup in this batch. The account was functionally dormant when we took over — the last send before Gold Standard (Feb 1 "Midday Magic") registered zero sends and zero opens. We started from scratch, building an engaged segment and slowly increasing frequency. Within 30 days, every campaign holds 17-20% open rates. This is email-only (no SMS) and no loyalty program yet, so additional lift will come as we activate those channels. The 2.58% failed send rate is already low enough to maintain healthy inbox placement.
Warmup Portfolio Summary — Q1 2026
Average open rate lift across all four warmups: +96%. From the Queens dispensary's 33x rescue to Smacked Village's early-stage 17% lift, our warmup protocol consistently rebuilds sender reputation regardless of how badly the domain was buried.
Average revenue per send lift: +107%. Warmups don't just fix open rates — they fix monetization. When emails land in the inbox instead of spam or promotions, every send generates more attributed revenue. Trends LIC doubled rev/send from $0.41 to $0.82. Stoops tripled from $0.14 to $0.45.
Every warmup follows the same playbook. Cut volume 85-90%, send exclusively to engaged openers for two weeks, expand gradually only when engagement holds. The protocol is repeatable because the inbox provider behavior is predictable — they reward sustained positive engagement signals.
This is what happens when Gold Standard takes over. These are not hypothetical scenarios or best-case projections. These are four real dispensary accounts managed through Alpine IQ, with before-and-after data pulled directly from the platform. When we take over an email program, the warmup is Step 1.
Need to Rescue Your Email Program?
We've warmed up four dispensary email domains in Q1 2026 alone — averaging a 96% open rate lift and 107% revenue per send lift. Whether your domain is buried at 0.55% or just underperforming at 12%, our warmup protocol rebuilds sender reputation and puts you back in the inbox.