How to write a compliant email signature for cold outreach?
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Your signature is doing double duty. It needs to identify you legally and honestly. It also needs to not sabotage your cold outreach with spam signals or bloated design. The balance is simpler than you think.
What you actually have to include:
Your name and company name (required). A physical mailing address (yes, really. CAN-SPAM demands it). An unsubscribe mechanism or clear opt-out instruction. A way for people to contact you back. That's it. Everything else is optional but can help or hurt.
What actually helps your cold email:
And your job title (builds credibility). Your company website (lets people verify you're real). Your LinkedIn profile if you mention it in the email itself. Keep it tight. Four to six lines maximum. Anything longer reads like you're hiding something.
What kills your deliverability:
Walls of legal disclaimers (spam signal). Multiple images or logos (seriously hurts opening rates). Promotional taglines or CTAs jammed in the signature. Social media icons unless they're directly relevant to your outreach.
Plain text beats HTML every single time in cold email.
HTML signatures trigger more spam filters and look corporate. Plain text is faster to load, cleaner, and builds trust. Test your signature in Gmail, Outlook, and one mobile client before you send to your list.
Use our email header analyzer to check if your signature is causing any deliverability issues before you scale.
If you want to go deeper, check out our guide on what is gdpr and how does it apply to email.
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Every name links to their profile. Every company links to their site. Real people, real accountability.
