Outlook Mobile Signature: Set It Up on iPhone and Android

To create a signature in Outlook mobile, open the app’s settings, go to Mail > Signature, enter your sign-off, and save or leave the screen to apply it. You can use a short name and contact details at the end of your messages; if Outlook offers a per-account option, set a separate signature for each email account you use.

The steps below cover Outlook for iPhone and Android. The app’s layout can vary slightly by version, but the signature setting is in the Mail settings. A mobile signature is separate from the one you may have created in Outlook on a computer, so make sure you set it up on the phone or tablet where you send mail.

What You’ll Need

The Microsoft Outlook app installed on an iPhone, iPad, or Android phone or tablet. Update it from the App Store or Google Play if the menus described below are missing.
An email account already added to Outlook. If you use more than one account, decide whether you want the same sign-off for all accounts or a different one for each.
The wording you want to use, including any contact details. Keep it concise and check that phone numbers, email addresses, and links are correct before saving.

Step-by-Step

Open Outlook and go to its settings. Start the Outlook app. Tap your profile picture or initials near the top-left corner to open the account and navigation panel. Then tap the gear icon to open Settings. On some versions, the gear is near the bottom of the panel; if the panel layout differs, look for the same gear icon after opening your profile menu.
Open the Mail settings. In Settings, scroll to the section for your account and app preferences, then tap Mail. Look for Signature in the Mail options and tap it. The setting is not usually under Calendar or Notifications. If you cannot find it, check that you are in the Outlook mobile app rather than a phone’s built-in mail app.
Choose whether to use one signature or separate ones. On the Signature screen, Outlook may show an option called Per Account Signature or similar. If you leave that option off, you can use one signature across the accounts in the app. If you turn it on, Outlook provides a separate signature field for each account. The wording and appearance of this control can vary by app version.
Enter your signature text. Tap the text box and type the sign-off you want Outlook to add to outgoing messages. A simple example is Thanks,
Jordan Lee
Customer Support
jordan@example.com. Replace the sample details with your own. Use line breaks to keep the information readable, and avoid adding private details you would not want included in every email.
Set the right signature for each account, if applicable. When per-account signatures are enabled, tap each account’s field and enter the corresponding text. For example, a work account might include your role and office number, while a personal account might contain only your name. Confirm the address or account label shown on the screen before entering information so you do not attach a work sign-off to personal email.
Return from the editor and confirm the setting remains. Outlook generally applies the text as you enter it; there may not be a separate Save button. Use the back arrow or close the settings screen, then open Signature again to verify the wording is still there. If your version shows a Save or check-mark control, tap it before leaving.
Send yourself a test message. Tap the compose icon, check that the From account is the one you configured, and look at the bottom of the draft for your signature. Send a test to an address you can check, or save the draft if you do not want to send it. Also start a reply or forward to see how the signature behaves in that kind of message. Review the result on another device if layout matters.

Once the test looks right, Outlook should add the signature automatically when you compose new mail in the configured account. The signature is inserted into the message body, so you can edit or remove it in an individual draft without changing the saved default. Keep in mind that editing the saved signature later will not usually rewrite messages or drafts that already exist.

Common Mistakes

Looking for the desktop signature setting. Outlook mobile has its own signature setting. A signature saved in Outlook for Windows, Outlook for Mac, or Outlook on the web may not appear in the mobile app, and changing the mobile version does not necessarily update the other versions. Configure each app you use.
Setting the signature on the wrong account. If you use more than one mailbox, check which account is selected in the signature screen and which From address is selected in the draft. A correct signature can still look wrong if it belongs to a different account.
Expecting an automatic logo or full desktop formatting. The mobile signature editor is primarily for text and may not offer the same layout, font, image, or HTML controls as desktop Outlook. A logo or carefully formatted block may be missing or display differently on recipients’ devices. Test any special content rather than assuming it will match your computer.
Adding the sign-off by hand as well. If Outlook inserts your saved signature and you also type it at the end of each message, recipients may see it twice. Check the bottom of a fresh draft before typing a closing.
Assuming a settings change updates old drafts. The new default is for messages created after the change. Open drafts may retain the previous text, so inspect or replace the signature in an existing draft yourself.

Tips

Keep it useful and compact. A name, role or organization, and one or two relevant ways to contact you are usually enough. A long signature takes up space on a phone screen and can make a short reply harder to follow.
Use plain text for reliability. Line breaks and readable text tend to work across email apps. If you include a website, type the full address and send a test; Outlook or the recipient’s app may turn it into a clickable link automatically. Do not assume a pasted image or styled text will be retained.
Match the signature to the account. A per-account sign-off helps keep personal and business messages distinct. For a shared or role-based inbox, use wording appropriate for anyone sending from that address and follow your organization’s email policy.
Check it on a small screen. Avoid long rows of symbols, multiple phone numbers, and wide layouts that wrap awkwardly. A brief test message viewed on a phone can reveal extra blank lines or broken links before you use the signature with customers or colleagues.
Review details periodically. Update a changed job title, phone number, or website in Settings > Mail > Signature. If you have separate signatures, review each one; changing the default for one account does not guarantee the others are corrected.

Troubleshooting

The Signature option is missing. Confirm you are using the Microsoft Outlook app and that the app is up to date. Open your profile menu, tap the gear, and look under Mail rather than under the phone’s system settings. Close and reopen Outlook after updating. If the app is managed by an employer, an organization policy or account setup may affect available features; contact your IT administrator if the setting remains unavailable.
The signature does not appear in a new message. Return to Settings > Mail > Signature and check that the text is still saved. In the compose window, confirm the selected From account matches the account whose signature you edited. Start a completely new message rather than relying on an older draft, and check whether the signature appears at the bottom of the body. If not, close and reopen the app and test again.
The wrong signature appears. Check whether Per Account Signature is enabled and review the text beside each account. Then check the From field in the message. If you use a shared mailbox or send as another address, Outlook may be composing from a different account than you expect, so verify the sender before sending.
The signature appears twice or in an odd place. Remove any manually typed duplicate from the draft. Look for extra blank lines in the saved signature and simplify the line breaks. Replies can include quoted message text below the new content, so distinguish the inserted signature from the earlier sender’s signature before deleting anything.
A link or formatting looks different to the recipient. Email apps do not all display formatting identically. Replace complex styling with plain text, check that the full web address is present, and send another test. If you pasted formatted content, remove it and type the signature directly in Outlook’s editor.
The change seems not to stick. Reopen the Signature screen to see whether the text persisted. If it did not, enter it again and use any visible Save or check-mark button before leaving. Check that Outlook has a working connection, then restart the app. If the problem continues, update Outlook or remove and re-add the account only after checking your organization’s support guidance.

Frequently Asked Questions

Does my Outlook mobile signature sync with desktop Outlook?
Do not assume it does. Outlook mobile has a separate signature setting, so set up and check the signature in each Outlook app where you send messages.

Can I have different signatures for different email accounts?
Yes, if your version of Outlook shows a Per Account Signature option. Turn it on and enter text in the field for each account. If the option is not available, use the single signature field and check which account it applies to.

Can I add a logo or a handwritten signature?
The mobile editor is mainly designed for text and may not support the image or formatting options available on desktop. Pasted images can be lost or display inconsistently. Use a short text signature for dependable results, or test the exact image in a message before relying on it.

Will the signature appear in replies and forwards?
It may be inserted when you reply or forward, depending on the app version and message flow. Compose a test reply and forward to see the behavior on your device. Remove the signature from a particular draft if it is not appropriate there.

Can I change the signature for just one email?
Yes. Edit or delete the inserted text in that message’s draft. This changes only that message; the saved default remains in Settings > Mail > Signature.

Why does a recipient see different spacing or links?
Outlook mobile, the recipient’s mail app, and screen size can affect how line breaks and formatting display. Keep the signature simple, use clear text, and send a test to an address you can check before using a more elaborate version.

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