Using Testimonials in Email Signatures

Customer testimonials build trust. Including them in signatures puts social proof in front of every recipient.

Testimonial Formats

• Short quote (one line)
• Star rating display
• Review platform badge (G2, Capterra)
• Case study link

Example Implementations

• "⭐⭐⭐⭐⭐ 4.9/5 on G2"
• "'Best tool we've ever used' — Customer Name"
• "See why 1,000+ companies trust us"
• "Read our customer success stories →"

Best Practices

• Get permission to use customer names
• Keep quotes very short (signature space limited)
• Link to full testimonials page
• Rotate testimonials periodically
• Use authentic, real reviews

Where to Display

• Sales team signatures (most impact)
• Customer success signatures
• Company-wide for major milestones