How to Create a Professional Email Signature

The problem usually shows up in someone else's inbox. A client wants to call you back, scrolls to the bottom of your message and finds either nothing at all or a block of twelve lines, three logos, a quote and a legal disclaimer longer than the email. A professional email signature sits between those extremes: it tells the reader who you are and how to reach you, and then it stops.

What to include

Most strong signatures fit in four to six short lines:

1. Full name, written the way you want to be addressed.
2. Job title and, if relevant, team or department.
3. Organisation name, linked to the main website.
4. One or two contact routes: usually a direct phone number, sometimes a booking link.
5. Optional extras that genuinely help: pronouns, working hours or a time zone, one professional profile link.

Your email address itself is optional, since it already appears in the message header. It does help when emails are forwarded or printed, so many people keep it.

If you work across countries, adding your time zone or usual hours saves a lot of messages sent at the wrong moment. The wider habits of working remotely from another country include being clear about when colleagues can expect a reply.

What to leave out

• Inspirational quotes and slogans, which age badly and read differently to every recipient.
• Several phone numbers, fax numbers and every social network you have joined.
• Large banners or animated images that push the actual message off small screens.
• Your full postal address, unless people really do send you post or visit you.
• Long confidentiality disclaimers, unless your employer requires one.

Logos, photos and images

Images are where most signatures break. Mail apps handle them differently: some block images until the reader allows them, some show them as attachments, and some strip them entirely. A few practical rules keep the damage small:

• Use a small PNG or JPEG for a logo, sized for the space it will occupy rather than scaled down by the mail app.
• Avoid SVG in email. Vector files are ideal on websites, and online SVG editors make them easy to prepare, but many mail programs will not display them, so export a raster copy for the signature.
• Always add alt text, so a blocked image still says something sensible, such as the company name.
• Make sure the signature still works with no images at all: the name and phone number should be real text.

A small headshot can make a signature friendlier in client-facing roles, especially when you rarely meet people in person. Use the same current picture as on your other professional profiles; the points about consistency in the piece on AI headshot generators and digital identity apply to a signature just as much as to a profile page.

Formatting that survives every inbox

Setting it up

Every mail program has a signature setting, usually under Settings or Preferences. Create the signature there rather than pasting it into each message, then send a test email to yourself and to a colleague using a different mail app and a phone. Look at it in light and dark mode. Most programs also allow a shorter second signature for replies and forwards, which keeps long threads readable: name, title and phone number are enough.

If you send job applications by email, a plain, tidy signature helps there too; pair it with the advice on writing a cover letter that gets read, and keep the signature free of anything a hiring manager might find distracting.

Legal details for businesses

In some countries, registered companies must show certain details on business emails as well as on letters, for example the registered company name, registration number and registered office address. The rules differ between countries and company types, so check what applies to your business with the official company registry or an accountant. Where details are required, a smaller line of text beneath the main signature keeps them present without crowding it.