Help CenterMicrosoft 365Setting Up Email Signatures in Outlook (Web and Desktop)

Setting Up Email Signatures in Outlook (Web and Desktop)

Create and manage professional email signatures in Outlook desktop app and Outlook on the web.

Email Signatures in Outlook

### Outlook Desktop (Windows)

1. Open Outlook → File → Options → Mail → Signatures

2. Click **New** → name your signature (e.g. "Main")

3. Type your signature in the editor — use formatting toolbar for fonts, images, links

4. Under **Choose default signature:** set for New messages and Replies/forwards

5. Click OK

### Outlook on the Web (OWA)

1. Go to outlook.office.com

2. Settings (gear icon) → View all Outlook settings → Compose and reply

3. Under **Email signature:** type and format your signature

4. Check "Automatically include my signature on new messages"

5. Save

### Signature Best Practices

A professional signature typically includes:

  • Full name and job title
  • Company name and logo (optional)
  • Phone number and email
  • Website URL
  • LinkedIn profile (optional)

### Inserting Signature Manually

If auto-signature is off, click in message → Insert tab → Signature → select your signature

### HTML Signatures

For advanced formatting (logos, banners), create in an HTML editor and paste into the signature box.

Tip: Use an online email signature generator for consistent formatting.

### Company-Wide Signatures (Admin — Exchange)

Admins can enforce signatures for all users:

Exchange Admin Centre → Mail flow → Rules → Create rule

Set: Apply to all messages → Append disclaimer (HTML signature)

This adds the signature server-side even if users forget.

### Troubleshooting

  • **Signature not appearing in replies:** Enable "Include my signature in messages I reply to" in settings
  • **Images not showing to recipients:** Host images externally (e.g. a web URL) rather than embedding
  • **Mobile Outlook signature:** Set separately in the Outlook mobile app → Settings → account → Signature
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