Adding a signature in Outlook on iPhone
Open Outlook on your iPhone and tap the menu icon (three horizontal lines) in the bottom right corner. Tap Settings, then select the email account you want to add a signature to. Scroll down and tap Signature, then toggle the switch to turn signatures on. Tap the text field below and type or paste your signature — this can be your name, job title, phone number, or any closing text you want to appear at the end of your emails.
Once you've entered your signature text, tap Save or back out of the menu. Your signature will now appear automatically at the bottom of every new email you send from that account. If you have multiple email accounts in Outlook, you can set a different signature for each one by repeating these steps for each account.
Key Takeaways
- Signatures are turned on through Settings for each individual email account in Outlook on iPhone.
- You can type or paste any text you want — name, title, phone number, website, or a closing phrase — into the signature field.
- Once saved, your signature appears automatically on every new email you compose from that account.
- Each email account can have its own unique signature if you use multiple accounts in Outlook.
- Signatures do not appear on replies or forwarded messages unless you manually add them.
What text works best in a signature
Keep your signature short and professional. Most people include their full name, job title, and one contact method — usually a phone number or email address. If you work for a company, you might add the company name or a website URL. Avoid using special characters, emojis, or formatting that might not display correctly on all devices.
Remember that your signature appears on every outgoing email, so consider what information you actually want recipients to see every time. A signature that works for business emails may be too formal for personal messages, so think about the tone of the emails you send from this account.
Signatures on replies and forwarded messages
By default, Outlook on iPhone does not add your signature to replies or forwarded messages — only to new emails you compose. This is usually the desired behavior, since adding a signature to every reply can make email threads long and cluttered. If you want to include your signature on a reply, you'll need to add it manually by tapping into the message body and typing it in.
Some users prefer this behavior because it keeps conversation threads clean. Others find it means they have to remember to add their signature each time. There is no setting in Outlook on iPhone to automatically add signatures to replies, so you'll need to decide whether to add them by hand each time or leave them off.
Editing or removing your signature
To change your signature, go back to Settings, select your email account, and tap Signature. Edit the text in the field and tap Save. The new signature will appear on all future emails you send. To remove your signature entirely, toggle the signature switch to the off position, and no signature will appear on new emails.
If you've already sent an email with an old signature, editing your signature settings won't change what's already in your sent folder. Only new emails going forward will use the updated signature.
Troubleshooting signatures that don't appear
If your signature isn't showing up on outgoing emails, first check that the signature toggle is turned on in your account settings. Make sure you're composing a new email rather than replying to one — signatures only appear on new messages by default. Close Outlook completely and reopen it, as this sometimes refreshes the signature settings.
If you've recently updated Outlook, try signing out of your account and signing back in. Go to Settings, select your account, scroll to the bottom, and tap Sign Out. Then add the account back by tapping Add Account and entering your email and password. After signing back in, set up your signature again. This often resolves issues where signatures stop appearing after an app update.
Using the same signature across devices
If you use Outlook on both your iPhone and a computer, you can set up the same signature on both devices, but you'll need to enter it separately on each one. Outlook on iPhone doesn't sync signature settings across devices automatically. Type or paste your signature into the iPhone settings, then do the same on your computer's Outlook application.
This means if you decide to change your signature later, you'll need to update it in multiple places. Some people keep their signature text in a note or document so they can copy and paste it consistently across all their devices.
Frequently Asked Questions
Can I use different signatures for different contacts?
No. Outlook on iPhone applies the same signature to all emails sent from an account. If you need different signatures for different recipients, you'll need to add them manually to each email, or consider using separate email accounts for different purposes.
Can I add a logo or image to my signature?
Outlook on iPhone's signature field accepts text only — you cannot insert images, logos, or formatted graphics. If you need a signature with an image, you'll have to add it manually to each email, or use Outlook on a computer where image insertion is supported.
Why doesn't my signature appear on emails I send to myself?
Some email providers filter or hide signatures on messages sent to the same account. This is usually a setting on your email provider's side, not an Outlook issue. Your signature should appear normally when you send emails to other people.
Does my signature appear when I send emails from Outlook's web version?
No. Signatures set in Outlook on iPhone only apply to the iPhone app. If you use Outlook on the web or on a computer, you'll need to set up signatures separately in those applications. Each version of Outlook has its own signature settings.
Can I schedule when my signature appears?
No. Once you turn on your signature, it appears on all new emails you send. Outlook on iPhone doesn't have a feature to schedule signatures for specific times or dates.