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What is Cold Email?

By Mailneo Team|

Cold email is an outreach message sent to someone you haven't communicated with before and who hasn't opted in to hear from you. It's a staple of B2B sales prospecting, and it walks a fine line between legitimate outreach and spam.

Why It Matters

Cold email, done right, is how most B2B companies build their pipeline. The average cold email response rate is 1-5%, which sounds low until you realize a single reply from the right prospect can be worth thousands of dollars. But cold email done wrong — mass-blasted, impersonal, and off-target — damages your domain reputation and might violate laws like GDPR or CASL.

How It Works

Effective cold email is targeted, personalized, and low-volume. You research your prospects, write messages that reference something specific about their business, and send from a warmed-up domain with proper authentication. The sending volume is deliberate — 50-100 emails per day from a mature domain, not 5,000.

Cold email legally falls in a gray area. Under CAN-SPAM (U.S.), it's allowed as long as you include your identity, physical address, and opt-out. Under GDPR (EU) and CASL (Canada), you generally need consent or a legitimate interest basis. Know the laws in your recipients' jurisdictions.

Quick Tips

  • Use a separate domain for cold outreach (e.g., getmailneo.com instead of mailneo.com). If your cold domain gets flagged, your main domain stays clean.
  • Keep emails short — under 125 words performs best. Your prospect doesn't know you; respect their time.
  • Follow up 2-3 times, spaced 3-5 days apart. Most replies come from follow-ups, not the initial message.
  • Never send cold email through your marketing email platform. Use tools designed for cold outreach that handle throttling and deliverability differently.

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