Email Signature: What to Include and Set Up
Step-by-step setup for Outlook and Gmail, what actually belongs in your signature, and what you should stop including immediately
Your email signature should include your full name, job title, company name, phone number, and one relevant link like LinkedIn or your website. Skip inspirational quotes, animated GIFs, and more than three social icons. In this guide, I walk through how to add signature in outlook and Gmail step by step, share email signature templates for different roles, explain HTML versus plain text, cover mobile signatures, and break down when to use multiple signatures for different contexts.
I once received an email from a potential business partner whose signature was longer than the actual email. It had a photo, a quote from Steve Jobs, six social media icons, a banner promoting an event from 2024, a legal disclaimer that took up half the screen, and an animated GIF of a handshake. The email itself was three sentences.
That experience crystallized something I had been thinking about for a while: most people treat their email signature as an afterthought or, worse, as a billboard. Neither approach works. Your email signature is one of the most frequently seen pieces of your professional brand, appearing at the bottom of every single email you send. It deserves intention, not decoration.
I have tested different signature formats across thousands of emails over the past four years. I have tracked which formats get the most LinkedIn connection requests, which ones clients comment on positively, and which ones cause rendering problems on mobile. This guide is the distilled version of everything I have learned.
What to Include in Your Email Signature
A professional email signature needs exactly five elements, and anything beyond that should earn its place through clear, measurable value.
First, your full name. This sounds obvious, but I have seen signatures with just a first name, nicknames, or initials. In professional communication, your full name is how people find you, reference you, and remember you. If your name is commonly misspelled, your sign-off block is your chance to set the record straight in every interaction.
Second, your job title and company name. This provides immediate context about who you are and what you do. Keep the title concise and recognizable. If your official title is Chief Innovation and Digital Transformation Officer, consider whether simply writing Head of Innovation communicates the same thing more clearly.
Third, your phone number. This is optional for some roles but essential for client-facing positions, sales, consulting, and freelancing. Include the country code if you work internationally. If you use a business phone separate from your personal number, use the business one.
Fourth, one primary link. For most professionals, this is either your LinkedIn profile or your company website. Not both. Not five links. One link that gives the recipient a clear next step if they want to learn more about you. I use my website because it contains everything someone might need, including my LinkedIn link.
Fifth, a subtle call-to-action if appropriate. This could be a link to book a meeting, a recent article you published, or a product launch. The key word is subtle. This is a signature, not an advertisement. I rotate my CTA quarterly and keep it to a single line.
Industry surveys consistently find that most professionals have not updated their email signature in over a year, often containing old titles, defunct links, or irrelevant promotions.
That is it. Five elements. If something does not fall into one of these categories, it probably does not belong in your email footer. I know that sounds restrictive, but remember: every element you add increases visual noise, loading time, and the chance of rendering problems across email clients.
What to Skip in Your Email Signature
This section might sting, but it needs to be said. Here are the things I see constantly in signature blocks that actively hurt your professional image.
Inspirational quotes. Your professional sign-off is not a motivational poster. That Einstein quote (which he probably never actually said) does not make you look thoughtful. It makes your email longer and your signature forgettable. If you want to share wisdom, write a blog post.
Too many social media icons. LinkedIn, Twitter, Instagram, Facebook, YouTube, TikTok, Pinterest, Threads. I have seen signatures with eight social icons in a row, each one a tiny clickable image. This creates visual clutter and, more importantly, most of those platforms are irrelevant to professional communication. Pick one, maybe two if both are genuinely work-related.
Animated GIFs. They break in most email clients, they increase email size, they look unprofessional, and they are distracting. There is no business context where an animated handshake or waving flag improves your email communication.
The best contact block is the one people do not consciously notice but subconsciously trust. It should feel professional, not performative.
Oversized headshot photos. A small, well-cropped photo can work in certain contexts (real estate, consulting), but a large photo eats up signature space, often renders poorly on mobile, and can trigger spam filters. If you include a photo, keep it under 100 pixels wide and make sure it is properly compressed.
Promotional banners for events or products. If you had a banner for your 2024 webinar and it is now 2026, your sign-off block is silently telling every recipient that you do not pay attention to details. If you must use banners, set a calendar reminder to update them. Better yet, skip them entirely.
Environmental disclaimers like 'Please consider the environment before printing this email.' These were well-intentioned in 2005 but have become meaningless filler in 2026. Nobody prints emails anymore, and the disclaimer just adds a line to every email you send.
How to Add Signature in Outlook: Step by Step
Setting up your outlook signature is straightforward, but the steps differ slightly depending on whether you use the desktop app, the web version, or the new Outlook. I will cover all three.
For Outlook Desktop (Windows): Open Outlook and click File in the top menu. Select Options, then Mail, then click Signatures. In the signature editor, click New, give your signature a name (like 'Primary'), and type or paste your signature content in the editor box. Use the formatting toolbar to set fonts, sizes, and add links. Under 'Choose default signature,' select your signature for new messages and for replies/forwards. Click OK.
For Outlook Desktop (Mac): Open Outlook and go to Outlook in the menu bar, then Preferences. Click Signatures, then click the plus icon to create a new one. Name it, type your content in the editor, and format it. Close the window to save. To set it as default, go to a new email, click Signature in the toolbar, and select Set Default Signatures.
For Outlook on the Web (outlook.com or Microsoft 365): Click the gear icon in the top right, then 'View all Outlook settings.' Navigate to Mail, then Compose and reply. Scroll down to Email footer. Type your signature, format it, and check the boxes for whether to include it on new emails and replies. Click Save.
If you want a properly formatted HTML signature in Outlook, create it in a web-based signature generator first, copy the rendered output, and paste it into the Outlook signature editor. This gives you much more control over layout, fonts, and spacing than the built-in editor allows.
For the New Outlook (2024 and later versions): Click Settings (gear icon), then go to Accounts, then Signatures. Click New Signature, name it, and compose your signature using the rich text editor. Set your default for new messages and replies separately. This version has an improved editor that handles formatting better than the classic Outlook desktop app.
One common issue with how to add signature in outlook is that formatting sometimes shifts between the editor and the actual sent email. Always send a test email to yourself and check it on desktop and mobile before finalizing. I have seen signatures that looked perfect in the editor but showed broken tables or oversized images in the actual email.
How to Set Up Your Gmail Signature
Setting up a gmail signature is simpler but comes with its own quirks. Gmail's signature editor is more limited than Outlook's, which actually forces you to keep things clean.
Step one: Open Gmail and click the gear icon in the top right, then 'See all settings.' Step two: Scroll down to the Signature section. You will see a text area with basic formatting options. Step three: Click 'Create new' and name your signature. Step four: Type your signature content. Use the formatting toolbar to add bold text, links, and divider lines. Step five: Below the editor, choose your signature defaults. You can set different signatures for new emails versus replies and forwards. Step six: Scroll to the bottom and click 'Save Changes.'
Gmail supports multiple signatures, and this is a feature I strongly recommend using. I have three: one for new business emails (includes full contact details and a CTA), one for replies to existing threads (minimal, just my name and title), and one for personal correspondence (just my name). You can switch between them using the signature picker at the bottom of the compose window.
To add an image to your gmail signature, click the image icon in the formatting toolbar while editing your signature. You can upload an image or link to one hosted online. I recommend hosting the image externally (Google Drive, your website, or an image CDN) so it loads reliably. Embedded images can bloat email size and trigger spam filters.
One important limitation: Gmail's mobile app uses a separate signature from the desktop version. By default, the mobile signature is just 'Sent from Gmail.' To change it, open the Gmail app, go to Settings, select your account, tap Mobile Signature, and type your preferred text. Keep the mobile version shorter than the desktop version since screen space is limited.
HTML vs Plain Text Signatures and Design Tips
The HTML versus plain text debate comes up constantly, and the answer depends on your audience and context.
Plain text signatures are universally compatible. They render identically in every email client, on every device, in every context. They never break, never load slowly, and never trigger spam filters. If you are emailing developers, security-conscious organizations, or anyone who uses plain text email clients, a plain text signature block is the safe choice.
HTML signatures allow for visual structure: columns, images, colored dividers, and clickable links with custom text. They look more polished in clients that render HTML well (Gmail, Outlook, Apple Mail). However, they can break in some clients, add to email size, and occasionally render differently than expected.
With nearly 4 in 10 emails read on phones, any email signature must render cleanly on small screens. Complex HTML layouts with multiple columns often collapse unpredictably on mobile.
My recommendation: use a simple HTML signature that degrades gracefully to plain text. This means using basic formatting (bold, links, a small image if needed) but avoiding complex tables, multi-column layouts, or embedded CSS. If your signature looks fine when you strip out all the HTML, it will work everywhere.
For design, follow these rules. Keep the total height under 150 pixels. Use no more than two font sizes (one for your name, one for everything else). Stick to your brand colors but use them sparingly, a colored divider line is enough. Left-align everything. And test on at least three email clients before finalizing.
A signature that breaks on mobile is worse than no signature at all. Always test on a phone before you deploy.
If you want a polished professional sign-off template without hiring a designer, several free generators do excellent work. MySignature, WiseStamp, and HubSpot's free signature generator all produce clean HTML that works across major email clients. Paste the generated HTML into your email client's signature editor, test it, and you are done.
Legal Disclaimers and Multiple Signatures
Legal disclaimers in contact blocks are a nuanced topic. In many industries, particularly finance, healthcare, and legal services, disclaimers are required by regulation or company policy. If your organization mandates one, include it, but keep it as short as legally permissible and put it below your main signature separated by a clear divider.
If you are not legally required to include a disclaimer, skip it. The standard confidentiality notice ('This email is intended only for the named recipient...') has questionable legal enforceability and adds visual bulk to every email you send. Consult with your legal team if you are unsure, but do not add one just because you saw it in someone else's email.
Both Outlook and Gmail support multiple signatures. Create a 'Full' version for new external emails, a 'Reply' version for ongoing threads with just your name and title, and a 'Minimal' version for internal communication. Set smart defaults so the full version goes on new emails and the reply version goes on replies.
Multiple signatures are especially useful if you wear different hats. As a solo founder, I send emails as the founder, as the support person, and occasionally as a developer collaborating on open-source projects. Each context benefits from a different signature that presents the relevant role and contact information.
The principle behind all of this is the same one I apply to email management in general. Your email tools should work for you, not create extra work. If your signature requires maintenance every month or causes rendering issues that you have to troubleshoot, it is too complex. The best professional sign-off block is one you set up once, update twice a year, and never have to think about otherwise.
Speaking of email working for you, the same philosophy applies to how you handle what arrives in your inbox. If you are spending more time managing email than doing actual work, the problem goes deeper than signatures. I explored that tension in the real cost of checking email every 15 minutes, and the solutions there complement the signature optimization in this guide.
Making Your Email Signature Work Harder
Your email footer is not just a sign-off. It is a touchpoint that appears in every email conversation you have. Over the course of a year, your signature is seen hundreds or thousands of times by clients, colleagues, and contacts. That is free, targeted exposure if you use it well.
The most effective approach I have found is treating the signature as micro-content. One line of useful information that changes periodically. Right now mine includes a link to my latest blog post. Last quarter it linked to a free tool I built. Before that, it mentioned a podcast episode I was featured on. Each rotation brought a measurable uptick in clicks.
Your signature block is seen thousands of times per year. That is more impressions than most social media posts get. Treat it like the micro-marketing channel it is.
But the rotation has to be intentional and infrequent. Changing your signature every week looks inconsistent. Quarterly updates strike the right balance. Set a calendar reminder at the start of each quarter to review and refresh your signature CTA.
Every quarter, check: Is your title still current? Is your phone number correct? Does your link still work? Is your CTA still relevant? Does your signature render properly on mobile? A 5-minute audit prevents months of sending broken or outdated information.
The connection between your professional sign-off and your broader email workflow is worth considering. If you use email as a core part of your business process, like managing tasks that come in through email, your signature can include a link to your booking page or a preferred way to send requests. This is something I have integrated into how I handle email-originated tasks, and it reduces back-and-forth significantly.
At the end of the day, your contact block is a reflection of how you approach communication. Clean, intentional, respectful of the recipient's time. That same philosophy drives everything I build at Mursa, where the goal is to make email a tool that works for you instead of a burden you manage around. Start with your signature, get it right, and let it quietly represent you in every conversation.
Frequently Asked Questions
How do I add a signature in Outlook?
In Outlook Desktop on Windows, go to File, Options, Mail, then Signatures. Click New, name your signature, and compose it in the editor. Set it as default for new messages and replies. In Outlook on the web, click the gear icon, View all settings, Mail, Compose and reply, then scroll to Email signature. The process takes about 5 minutes.
What should a professional email signature include?
A professional email signature should include your full name, job title, company name, phone number, and one primary link (LinkedIn profile or company website). Optionally, add a subtle call-to-action like a booking link or recent article. Keep it under 150 pixels tall and avoid inspirational quotes, animated GIFs, and more than two social media icons.
How do I set up a Gmail signature on mobile?
Open the Gmail app, go to Settings, select your account, and tap Mobile Signature. Type your preferred text. Note that Gmail mobile uses a separate signature from the desktop version, so you need to set it up independently. Keep the mobile version shorter than your desktop signature since screen space is limited on phones.
Should I use HTML or plain text for my email signature?
Use a simple HTML signature that degrades gracefully to plain text. This means basic formatting like bold text, links, and a small image, but avoid complex tables or multi-column layouts. If your audience is primarily developers or security-conscious organizations, plain text is safer. Always test on desktop and mobile before finalizing.
How often should I update my email signature?
Audit your email signature quarterly. Check that your title, phone number, and links are current, ensure your call-to-action is still relevant, and verify it renders correctly on mobile. Major updates like a new job title or company change should be reflected immediately. Set a calendar reminder at the start of each quarter for a 5-minute review.