If your signature isn't appearing in emails, this guide helps you diagnose and fix the issue across different email clients.
Quick Checklist
Before diving deep, verify these basics:
- Signature is set as default in your email client
- Correct account is selected (if multiple accounts)
- You've saved all settings
- You've composed a new email to test
Gmail Issues
Signature Not in New Emails
Check signature is set:
- Go to Gmail Settings (gear icon > See all settings)
- Scroll to Signature section
- Verify your signature is created and selected
- Under "Signature defaults", ensure "For new emails use" is set
Check account:
If you have multiple Gmail accounts, each has separate signature settings.
Signature Not in Replies
Gmail has separate settings for replies:
- Go to Gmail Settings
- Scroll to Signature section
- Find "On reply/forward use"
- Select your signature (or "same as new emails")
- Save changes
Signature Shows at Very Bottom
By default, Gmail puts signatures after quoted text:
- Go to Gmail Settings
- Scroll to Signature section
- Check "Insert signature before quoted text in replies"
- Save changes
Outlook Issues
Desktop Outlook (Windows)
Verify signature exists:
- Go to File > Options > Mail
- Click Signatures
- Check your signature is listed
Set as default:
- In Signatures window, find "Choose default signature"
- Select your account
- Set "New messages" to your signature
- Set "Replies/forwards" as desired
- Click OK
Restart Outlook after making changes.
Desktop Outlook (Mac)
- Go to Outlook > Preferences
- Click Signatures
- Select your account
- Choose your signature for "New messages" and "Replies/forwards"
- Close preferences
Outlook Web
- Click Settings (gear icon)
- Click View all Outlook settings
- Go to Mail > Compose and reply
- Scroll to Email signature
- Check both:
- "Automatically include my signature on new messages"
- "Automatically include my signature on messages I forward or reply to"
- Save
New Outlook for Windows
The new Outlook has different settings:
- Click Settings (gear icon)
- Go to Email > Signature
- Select your signature
- Toggle automatic inclusion for new messages and replies
Apple Mail Issues
macOS
- Go to Mail > Settings > Signatures
- Select your email account (left column)
- Verify signature is listed
- Check "Choose signature" dropdown is set correctly
- Restart Mail
iOS
- Go to Settings > Mail > Signature
- Verify signature is entered
- Check it's assigned to the correct account
Common Causes
Wrong Account Selected
If you have multiple email accounts:
- Each account has its own signature settings
- Verify you're composing from the correct account
- Check signature assignment for each account
Signature Not Saved
After creating a signature:
- Always click Save/OK
- Close all settings dialogs properly
- Restart the email client to be sure
Conflicting Settings
Some email systems have multiple signature locations:
- Client-side signatures (your computer)
- Server-side signatures (company IT)
- Mobile vs. desktop settings
Ask IT if there are server-side rules affecting signatures.
Signature Disabled for Account
In multi-account setups, signatures may be disabled for specific accounts. Check each account's settings individually.
Testing Your Signature
Send a Test Email
- Compose a new email
- Address it to yourself
- Check if signature appears in the compose window
- Send the email
- Check received email for signature
Test Replies
- Reply to any email
- Check if signature appears
- Send a test reply to yourself
- Verify signature in received reply
Test Mobile
If using mobile email:
- Compose email on your phone
- Check signature appearance
- Send test to your desktop email
- Verify how it looks when received
Advanced Troubleshooting
Clear Cache and Restart
Gmail (Web):
- Clear browser cache
- Log out and back in
- Re-check settings
Outlook (Desktop):
- Close Outlook
- Restart computer
- Reopen Outlook
- Re-verify settings
Apple Mail:
- Quit Mail (Cmd+Q)
- Reopen Mail
- Check signature settings
Re-create the Signature
If nothing else works:
- Delete the existing signature
- Close the email client
- Reopen and create a fresh signature
- Copy new HTML from Signkit
- Paste into the new signature
- Save and test
Check for Extensions/Add-ins
Browser extensions or email add-ins may interfere:
- Disable extensions temporarily
- Test signature
- Re-enable one by one to find conflicts
Corporate/IT Policies
Your organization may have policies that:
- Override personal signatures
- Apply server-side signatures
- Disable signature features
Contact your IT department if you suspect organizational restrictions.
When Signature Appears for You but Not Recipients
This is usually an image loading issue rather than signature appearance:
- See Images Not Displaying
- Recipients may need to enable images
- Check if your images use HTTPS
Email Client-Specific Notes
Gmail Mobile App
- Mobile signatures are separate from desktop
- Go to Settings > [Account] > Signature settings
- Enable "Mobile Signature"
Outlook Mobile
- Open Outlook app
- Tap profile icon > Settings gear
- Tap your account > Signature
- Enable and configure
Windows Mail App
- Go to Settings > Signature
- Toggle on "Use an email signature"
- Configure per account or for all accounts
Still Not Working?
If you've tried everything:
- Document your settings (screenshots)
- Note which email client and version
- Contact support@signkit.io
- Include:
- Email client name and version
- Operating system
- Steps you've already tried
- Screenshots of your settings
Prevention Tips
After Setup
- Send test emails immediately
- Verify on multiple devices
- Check both new emails and replies
Regular Checks
- Test periodically (monthly)
- Re-verify after email client updates
- Confirm after OS updates