Cold Email Domain Name Generator
Enter your company name and primary domain. We'll generate brand-safe domain variations for cold email outreach.
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Set up domains with Sales.co →How to Choose Cold Email Domain Names
The most important rule for cold email domains: never send cold emails from your primary domain. If your primary domain gets flagged or blacklisted, it affects all your business email — including transactional emails, support, and internal communications.
Instead, use variations of your brand name on separate domains. The best cold email domain names are:
- Recognizably connected to your brand (so recipients feel the email is legitimate)
- Short and clean — avoid hyphens, numbers, and unusual TLDs that trigger spam filters
- Using trusted TLDs — .com is best, followed by .co, .io, and country-specific TLDs
- Not keyword-stuffed — "get-best-deals-acme.com" looks spammy
Recommended Naming Patterns
Based on deliverability data from thousands of cold email campaigns, these naming patterns perform best:
- Prefix patterns: tryacme.com, getacme.com, meetacme.com, hiacme.com
- Suffix patterns: acmehq.com, acmeteam.com, acmemail.com
- Word variations: acme.co, acme.io, useacme.com
Avoid patterns that look like phishing — "acme-secure.com" or "acme-login.com" will get flagged immediately.