How to write a compliant email signature for cold outreach?

A proper email signature meets legal requirements while maintaining professional presentation.

Required elements:

• Sender identification: Your name and company name
• Physical address: Required by CAN-SPAM, valid postal address
• Unsubscribe mechanism: Clear link or instruction to opt out
• Contact information: Way to reach you (website, phone)

Recommended elements:

• Title or role (establishes credibility)
• Company website (allows verification)
• LinkedIn profile (for professional context)

What to avoid:

• Excessive disclaimers (walls of legal text)
• Multiple images or logos (deliverability concerns)
• Social media icons unless relevant
• Promotional taglines or CTAs in signature

Formatting considerations:

• Plain text performs better than HTML signatures in cold email
• Keep it concise (4 to 6 lines maximum)
• Ensure all links work and are trustworthy
• Test how signature renders in different email clients

The signature should identify you clearly without overwhelming the message content.