What is cold email?
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Cold email is outreach to someone you've had no prior contact with. You're not replying to a conversation. You're starting one. The recipient didn't sign up for anything, doesn't know you, and has no existing relationship with your business.
It's most common in B2B contexts: sales prospecting, recruiting, partnership development, and business development. You've identified someone who might benefit from what you offer, and you're reaching out to introduce yourself and start a conversation. Done well, it's a legitimate and effective channel. Done badly, it's spam.
The distinction between cold email and spam isn't just about opt-in status. It's about targeting, relevance, and execution. A well-researched cold email to a specific person about a genuinely relevant opportunity is very different from blasting a scraped list with a generic pitch. Mailbox providers and recipients can often tell the difference.
Cold email faces inherent deliverability challenges that warm permission-based sending doesn't. Recipients don't expect your email, so they're more likely to ignore it or mark it as spam. Sender reputation matters enormously because you have no prior engagement history to lean on. Authentication, list quality, and sending behavior all need to be tighter than they would be for a newsletter to opted-in subscribers.
If you're new to cold email, it's worth reading through the compliance requirements too, specifically CAN-SPAM in the US and GDPR's legitimate interest doctrine in the EU. The legal landscape is more nuanced than "cold email is illegal" (it isn't) but there are real rules you need to follow.
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