The 15-Day Warm-Up Blueprint: Zero to 100 k Daily Sends Without Hitting Spam

Why Warm-Up Matters (Even If You Bought “Clean” IPs)

Mailbox providers trust behaviour, not promises. A pristine IP that suddenly blasts 50 k casino promos looks compromised.

Pre-Flight Checklist

• Fresh .com domain with hidden WHOIS
• SPF -all, 2048-bit DKIM, DMARC p=none
• Seed list of real, engaged addresses (no catch-alls, no role accounts)

Day-by-Day Calendar

Day	Sends/IP	Total Volume	Key Action
1	50	200	Unique, text-heavy “hello” to seed list
2	75	300	First DKIM alignment check
3	100	400	Start Inbox/Spam monitoring
4	150	600	Add light HTML—no images
5	225	900	DMARC report review
6	350	1 400	Split casino vs forex subs
7	500	2 000	First small segment of live list
8	750	3 000	Rotate subject lines
9	1 250	5 000	Add minimal images; alt text required
10	2 000	8 000	Move DMARC to quarantine
11	3 000	12 000	Start click-tracking (redirect domain)
12	5 000	20 000	Introduce bulk senders (promo lists)
13	9 000	36 000	Check Postmaster “Spam %” < 0.3
14	12 500	50 000	Scale list size by niche
15	25 000	100 000	Hold here 2–3 days before next jump

(Assumes four dedicated IPs. Adjust proportionally.)

Smart Safeguards

• Auto-throttle: If spam complaints >0.2 %, drop volume 25 % next day.
• Randomised send windows: Avoid hour-one spikes that look automated.
• Content diffing: Ensure at least 30 % variance in body copy per batch.

Graduation Day

Once you’ve cruised at 100 k with inbox placement ≥ 85 % for 72 h, you’re cleared for normal campaign cadence. Scale in 25 % jumps, monitor like a hawk, and never skip “sleep days” (volume plateaus) every fortnight.