What is an email signature?
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An email signature is that block of text that shows up at the bottom of an email, usually with your name, title, company, and contact info. It's automatic (you set it once, it appears on every message), and it's how recipients know who you are beyond just your email address.
What goes in a signature varies, but the basics are: your full name, your role or title, your company name, and one or two ways to reach you (website, phone, or social link). Some signatures include legal disclaimers, especially in finance or healthcare. Some people add a headshot. Some just stick with plain text.
For marketing emails, signatures are a little different. Most Mailchimp or Brevo templates include a signature-style section at the bottom (company address, social icons, unsubscribe link), but that's not the same as the auto-append signature in Gmail or Outlook. Those are designed by the sender, not configured in your inbox settings.
One old-school detail worth knowing: the signature delimiter. It's two hyphens, a space, and a line break (-- ). Early mail clients used that marker to know where the signature started, so they could collapse or hide it. You still see it in plain-text emails today, especially from technical folks or command-line mail users.
And from a deliverability perspective, signatures don't usually cause problems, but overly long ones with tons of images, huge logos, or tracking pixels can trigger spam filters. Keep it clean, keep it light. If you're sending transactional email (receipts, password resets), a simple text signature is safest.
Want to see what your signature looks like to mail servers? Run an email through our Source Analyzer to check the raw HTML and spot anything weird (broken images, tracking pixels you didn't know about).
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Every name links to their profile. Every company links to their site. Real people, real accountability.
