40 Great logo designs that look awesome in your email signature

Here at Email Signature Rescue we believe the best email signatures come by starting off with your logo and then moulding your email signature design around that. Not only will this keep your email signature uniform and true to your business branding, it will also be much more recognizable.

Of course, the logo design isn't the be all and end all of an email signature, but a great logo definitely plays a large part in improving the overall look of your signature.

Here are some of our key tips in moulding your email signature design around your logo:

1. Colour branding: Keep your email signature to two or three colours that relate to your logo. Using the primary colour of your logo for your feature text and black or grey for your common text will set a strong foundation for the overall look of your email signature.
2. Social styling: Use social icons that match your logo design to connect your users with your business. If you're a lawyer or accountant, consider using a more formal style of icon. If you're a graphic designer or artist, consider a more creative style of icon. Don't forget to use either a colour of icon that matches your branding, or the default colour of that social platform to keep it recognizable.
3. Font type: Much like selecting the style of icon, you want to match your font type to your branding too so everything ties in together. If your logo has a classic look and uses a serif type font in the text, you may want to look at using either Times New Roman or Georgia as your signature font. If your logo as more of a modern look we suggest using a sans-serif font such as Arial, Calibri, Verdana or Tahoma. Make sure to only use web-safe fonts in your email signature so you know the text will always displays correctly.

Now that you've got some ideas on how to design your email signature based off of your logo, let's take a look at some awesome email signatures our users have created with the use of their great logo designs.

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How big should your logo be in your email signature?

When adding a logo to your email signature, it’s important to balance size and clarity to ensure it looks professional while not overwhelming the content of your email. Here are some guidelines on how big your logo should be:

Optimal Size for Email Signature Logo:

• Width: Between 100px and 300px.
• Height: Between 30px and 100px.
• File Size: Ideally under 50KB (preferably between 20KB and 40KB).

Detailed Breakdown:

1. Width & Height:
   • Logos should be sized to maintain readability and brand identity while keeping your email signature neat and compact.
   • A width of 100px to 300px allows the logo to be prominent without distracting from the main content of the email.
   • The height is typically between 30px and 100px, ensuring the logo fits well into the overall signature layout without appearing too large or too small.
2. Aspect Ratio:
   • Maintain the aspect ratio (the proportional relationship between the width and height) to prevent distorting the logo.
   • If the logo is wider than it is tall, adjust the width to fit within the 100-300px range, and let the height scale accordingly.
3. File Size:
   • Large file sizes can slow down email load times and affect mobile responsiveness.
   • Compress your logo to keep the file size small (ideally under 50KB) while ensuring the quality is maintained. Tools like TinyPNG or JPEG-Optimizer can help reduce file size.
4. Resolution:
   • Use a high-resolution image (300 DPI) to ensure the logo looks sharp, but keep in mind that email clients generally render images at 72 DPI for on-screen viewing. Avoid using excessively large images (e.g., 2000px wide) as they can significantly increase file size.
5. Mobile Consideration:
   • Your logo should look good both on desktop and mobile devices. On mobile, if the logo is too large, it may distort or push the text down.
   • Test your signature on multiple devices to ensure the logo maintains a professional appearance.

Additional Tips:

• Format: Use file formats like PNG (with transparency) or JPEG. Avoid using large formats like SVG unless you're confident about compatibility with all email clients.
• Alignment: Ensure the logo is aligned properly (left, center, or right) and doesn’t overcrowd other elements in your signature.

By keeping your logo size within these recommended dimensions and optimizing the image, you can create a polished and professional email signature that won’t negatively impact the user experience.

How do I add a retina image as my logo in my email signature?

To add a retina image (high-resolution image) as your logo in an email signature, you need to ensure that the logo looks sharp on high-resolution (HD) screens, such as Retina displays on Apple devices. Here's a step-by-step guide on how to do it:

Steps for Adding a Retina Image as Your Logo in Your Email Signature:

1. Use High-Resolution Image (2x Size)

• Retina displays have double the pixel density of regular screens. To ensure your logo appears crisp and sharp, you'll need to use an image that is 2x the size you would normally use for standard displays.
• For example, if your regular logo width is 200px, create a 400px-wide version for Retina displays.
• Tip: Keep the file size in check. You still want to keep the image size under 50KB for quicker loading times.

2. Optimize the Image for Email

• While high resolution is important, file size is equally critical. Use an image compression tool (like TinyPNG or JPEG-Optimizer) to reduce the file size without losing quality.
• For PNG logos, ensure that the file size is minimized while maintaining transparency if needed.

3. Update Image Dimensions in HTML (Use CSS for Retina)

• In your HTML email signature, you can add the retina-ready image and instruct it to display at a smaller size, while ensuring the high-res version is used for HD displays.
• You can do this by setting the image’s HTML width and height to the desired size while linking to a 2x version for better clarity on high-resolution screens.
• Example HTML code:
• html
• Copy code
• <img src="logo-400px.png" alt="Company Logo" width="200" height="auto" style="max-width:100%; height:auto;">

• In this example:
  • src="logo-400px.png": This is the path to your 2x (retina) logo.
  • width="200": This sets the size at which the logo will display in the signature.
  • height="auto": This keeps the logo proportional (adjusts height automatically based on the width).
  • Style: Using max-width:100% ensures that the logo is responsive and adjusts to screen sizes, especially on mobile.

4. Ensure the Logo Scales Properly

• For responsive design, ensure the logo scales properly on various devices (desktop, mobile). The max-width: 100% CSS rule helps the image adjust for smaller screens.
• Also, avoid specifying a fixed height. Instead, use height: auto to maintain the logo's aspect ratio and prevent it from appearing stretched or squished.

5. Test Across Devices

• After adding your retina logo to the email signature, test it on different devices and email clients to confirm it renders correctly. This includes testing on devices with Retina displays (e.g., modern MacBooks, iPhones, and iPads).
• Use email testing tools like Litmus or Email on Acid to ensure that your email signature looks good across multiple platforms (desktop, mobile, and web-based email clients).

6. Fallback for Non-Retina Displays

• If you'd like to ensure compatibility for non-Retina displays or older devices, you can add a fallback image that’s at the regular resolution (1x).
• Most email clients will automatically use the higher resolution version for Retina screens while defaulting to the lower resolution for regular screens.

Example fallback:

‍<img src="logo-200px.png" alt="Company Logo" width="200" height="auto" style="max-width:100%; height:auto;">


Here, logo-200px.png will be used on regular displays, while logo-400px.png will be used on Retina displays.

Key Considerations:

• Test Compatibility: Ensure that the 2x (Retina) logo displays properly in email clients like Gmail, Outlook, Apple Mail, and others, especially in mobile apps.
• Use Web-Safe Formats: While you may want a high-res logo, ensure you're using standard web formats like PNG or JPEG for compatibility.
• Avoid Excessive File Size: While using high-res images, ensure the file size is optimized for fast loading times, especially in emails with many recipients.

To add a retina image as your logo in an email signature, use a high-resolution (2x size) image, and scale it appropriately in your email’s HTML code. Use CSS to make sure it looks good on both Retina and regular displays while maintaining a reasonable file size. Always test your signature to ensure compatibility across different email clients and devices.

How do I upload a logo to my email signature?

Uploading a logo to your email signature typically involves inserting the image into the email signature editor of your email client or email signature software. Here's how you can upload and add a logo to your email signature across different email platforms:

1. Gmail

To add a logo to your email signature in Gmail:

1. Prepare the Logo: Make sure your logo is in an appropriate format (usually PNG or JPEG) and sized correctly (under 50KB for best performance).
2. Open Gmail Settings:
   • Click the gear icon (⚙️) in the upper-right corner of Gmail.
   • Select See all settings from the dropdown.
3. Go to the Signature Section:
   • In the Settings window, go to the Signature tab under the General section.
   • If you don’t have a signature yet, click Create New to start one.
4. Insert the Logo:
   • In the signature editor, click the Insert Image icon (it looks like a small picture).
   • You can either:
     • Upload an image from your computer.
     • Select an image from Google Drive (if you’ve stored your logo there).
   • Once the logo is uploaded, it will appear in your signature editor.
5. Resize the Logo (Optional):
   • Click on the logo in the signature editor to resize it. You can choose from Small, Medium, or Large sizes or manually adjust the size.
6. Save Changes:
   • Scroll to the bottom and click Save Changes.

2. Outlook (Web)

To add a logo in the email signature in Outlook on the Web:

1. Prepare the Logo: Ensure your logo is correctly formatted and resized (under 50KB for best performance).
2. Open Outlook Settings:
   • Click the gear icon (⚙️) in the upper-right corner.
   • Select View all Outlook settings.
3. Go to the Signature Section:
   • Under Mail, select Compose and reply.
   • In the signature section, click New signature or edit an existing one.
4. Insert the Logo:
   • Click the Image icon (looks like a picture).
   • Select Upload from this device to upload the logo from your computer.
   • After uploading, the logo will appear in your signature.
5. Resize the Logo (Optional):
   • Once the logo is inserted, you can click on it to resize it by dragging the corners.
6. Save Changes:
   • After inserting the logo, make sure to click Save at the bottom of the page.

3. Outlook Desktop (Windows)

To upload a logo to your email signature in Outlook Desktop:

1. Prepare the Logo: Make sure the logo file is properly sized (under 50KB).
2. Open Outlook:
   • Open the Outlook desktop app.
3. Access Signature Settings:
   • Click on File > Options.
   • In the Mail section, click on Signatures.
4. Create or Edit Signature:
   • In the Email Signature tab, click New to create a new signature, or select an existing one to edit.
5. Insert the Logo:
   • In the signature editor, place the cursor where you want the logo to appear.
   • Click on the Image icon (it looks like a picture).
   • Browse to your logo file on your computer and select it.
6. Resize the Logo (Optional):
   • After inserting the logo, you can resize it by right-clicking on the image and selecting Size and Position.
7. Save and Apply:
   • Click OK to save your signature and apply it to new emails.

4. Apple Mail (Mac)

To add a logo in Apple Mail on macOS:

1. Prepare the Logo: Ensure your logo is in a proper image format (usually PNG or JPEG) and appropriately sized.
2. Open Apple Mail:
   • Open the Mail app on your Mac.
3. Go to Preferences:
   • Click Mail in the top menu bar and select Preferences.
   • In the Preferences window, go to the Signatures tab.
4. Create or Edit Signature:
   • Select the email account you want to add the signature to.
   • Click the + button to create a new signature, or select an existing signature to edit.
5. Insert the Logo:
   • In the signature editor, drag and drop your logo image directly into the signature field, or click the Insert Image button if available.
6. Resize the Logo (Optional):
   • You can resize the image by selecting it and using the handles to adjust its size.
7. Save:
   • Close the Preferences window, and the signature will be saved automatically.

5. Thunderbird

To add a logo to your email signature in Thunderbird:

1. Prepare the Logo: Make sure your logo is in the correct format (PNG, JPEG) and size.
2. Open Thunderbird:
   • Open the Thunderbird application.
3. Go to Account Settings:
   • Click on the Menu button (three horizontal lines) in the upper-right corner.
   • Select Options > Account Settings.
4. Create or Edit Signature:
   • Under your email account settings, find Signature Text.
   • Select the Use HTML option (to allow rich formatting and images).
5. Insert the Logo:
   • To insert an image, you can use the Insert menu at the top of the signature editor and choose Image.
   • Choose your logo file from your computer.
6. Save:
   • Once your logo is inserted, save the changes.

6. Using Email Signature Software

If you're using third-party email signature software, such as Email Signature Rescue, the process is often simplified:

1. Upload the Logo:
   • In most cases, the software will provide an option to upload an image from your computer or link to an image hosted online.
2. Insert and Resize:
   • The software will automatically create a signature for you. You can resize the logo and adjust its placement as needed within the signature editor.
3. Generate and Copy the Signature:
   • After creating your email signature, you can copy the HTML code or use the automatic integration option to add it directly to your email client.

The process of adding a logo to your email signature varies slightly depending on the email client you're using, but the general process involves uploading the image, adjusting the size and placement, and saving the signature. Make sure the logo is appropriately sized for email (ideally under 50KB) and test it to ensure it looks good across different devices and email clients.

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