What a Professional Email Signature Should Include

Your e-mail signature is the most repeated part of your correspondence: it appears in front of customers dozens of times a day. A good signature tells people who you are, how to reach you and what your brand is at a glance. A bad one clutters the e-mail, falls apart on a phone or shows an empty box instead of a logo. This guide explains what a professional e-mail signature should look like.

What a Good Email Signature Includes

• Full name
• Job title and department
• Company name and logo (small and sharp)
• Phone: with a link that starts a call when tapped
• Website: shown short and readable rather than as a full URL
• Optional: address, up to two social media links, a short legal notice

The rule is simple: four or five lines at most, and the reader should find what they need in seconds.

What to Avoid

• Making the whole signature a single image: if images are blocked, the signature disappears and nothing can be copied.
• Lots of icons, colours and fonts
• Long quotes, large banners and animated images
• Personal e-mail addresses or numbers that belong to other people
• Logos that travel as an attachment with every e-mail

Design Rules

• Width: keep the signature under 600 pixels so it can collapse to one column on a phone.
• Fonts: use fonts available on every device, such as Arial, Helvetica, Verdana or Georgia.
• Colours: one or two of your brand colours are enough; keep good contrast between text and background.
• Hierarchy: your name should be the most prominent line, with contact details quieter.
• Logo: prepare it at about twice the display size and scale it down; consider a light background or padding instead of transparency so it does not vanish in dark mode.

Technical Rules: How to Code an HTML Signature

E-mail clients support far less HTML and CSS than web browsers. Classic Outlook for Windows in particular renders e-mail with a Word-based engine. Signatures should therefore be coded to e-mail rules, not like web pages:

• Use tables for layout; modern layouts such as flexbox and grid do not work in every client.
• Write styles inline; external stylesheets are ignored by most clients.
• Load images from fixed, public addresses that start with https, and give every image alt text.
• Link the phone with tel: and the e-mail with mailto:.
• Do not rely on background images or custom fonts; the signature should stay readable without them.

A signature coded this way can be added to Gmail and Outlook without breaking. We show the Gmail steps in how to add a signature in Gmail.

An Example Layout

A clean, effective business signature can be ordered like this:

• Line 1: Jane Smith
• Line 2: Sales Manager, Example Technology
• Line 3: +90 5xx xxx xx xx | exampletechnology.com
• Line 4: a small logo and, optionally, two social media icons

The name and company here are only placeholders; what matters is that the information is ordered by importance and nothing unnecessary is included.

Consistent Signatures Across the Team

When every employee makes their own signature, you soon end up with different logos, old phone numbers and mismatched fonts. For consistency:

• Agree on one approved template.
• Generate new employees' signatures from that template by filling in their details.
• When the logo or address changes, update all signatures centrally.

A consistent signature is only one part of looking trustworthy; we collected the rest in our corporate website checklist.

For the template design, see our email signature design service; for coding that works in every client and rolling it out to the team, see HTML email signature coding.

Test Before You Roll It Out

• Gmail on the web and the mobile app
• Outlook: classic for Windows, the new Outlook and Outlook on the web
• Apple Mail (iPhone and Mac)
• Appearance with dark mode on
• Appearance in replies and forwards

Conclusion

A good e-mail signature is short, readable and consistent: name, job title, company, phone and website are enough. On the technical side, tables, inline styles and public image addresses make the signature look right everywhere. Just as important is that the website link in your signature leads to a strong site: if you do not have one yet, choose your sections on the Quick Website page to build a site with an admin panel.