Great question — and the honest answer is: start small on purpose. Mailbox providers like Gmail watch new senders closely, like a bank watching a brand-new account.
Why it matters: blast 5,000 cold contacts on day one and you look like a spammer, even if you're not.
— Day 1-2: send to your 20-50 most engaged people (recent buyers, friends).
— Day 3-5: add a few hundred who opened something recently.
— Week 2+: grow by roughly double each step if complaints stay low.
✅ Pick your 50 warmest contacts and email only them first.
This slow ramp is called warming up your sending. It builds trust before volume.
New here? Start with the basics above.
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How many emails should I send my first week?
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