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How to Remove the Sent from My Device Signature in Exchange Email

John Wilson Oct 19, 2026 868 views

Question details

The user wants to identify and remove the default "Sent from my device" signature automatically added to the bottom of outgoing Exchange emails sent from a mobile phone.

How to Remove the "Sent from My Device" Signature in Exchange Emails

Product: Microsoft Exchange / Outlook Mobile
Device & OS: iOS and Android
Scenario: Sending professional emails from an Exchange account using a mobile device email application.
Observed behavior: Emails sent from mobile devices automatically append a "Sent from my device" or similar message that the user or administrator wishes to remove.

Before you start

Verify whether this signature is appearing on emails from just one specific user or if it affects all users across the organization, as this dictates whether the fix is on the device level or in the Exchange admin center.

Solution 1Recommended

Remove the Signature via the Mobile Email App Settings

This is the most common and direct method, as the "Sent from my device" signature is typically a local default setting generated by the mobile mail client, such as Outlook for iOS or Android.

Exchange Server does not natively control the local signatures configured on individual mobile devices. Therefore, the user must manually clear or modify the default signature directly within their mobile email application.

Open Outlook Mobile App

Launch the Outlook app on your iOS or Android device and tap your profile icon in the top left corner.

Access Settings

Tap the gear icon at the bottom left of the menu to open the Settings screen.

Navigate to Signature

Scroll down to the 'Mail' section and tap on 'Signature'.

Delete or Edit the Text

Select the Exchange account if you have multiple accounts. Delete the text "Get Outlook for iOS/Android" or "Sent from my device", then tap the checkmark to save your changes.

Remove the Signature via the Mobile Email App Settings

Signature Updated: Future emails sent from this device will no longer contain the default mobile signature.

Solution 2

Check Exchange Mail Flow Rules and Third-Party Gateways

Use this solution if the signature remains after modifying the device app settings, which indicates the signature is being injected by a server-level rule or third-party service.

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Frequently Asked Questions

Why does 'Sent from my device' automatically appear on my emails?

This message is a default marketing signature set by the developers of mobile email applications (like Apple Mail or Outlook Mobile) to indicate that the email was composed on a mobile device.

Can Exchange administrators force the removal of mobile app signatures?

Administrators generally cannot modify the local signature settings within a user's native mobile app directly through Exchange. Users must manually change their app settings, or admins can deploy standardized signatures using third-party signature management tools.

Will applying Exchange ActiveSync policies remove the signature?

No. Exchange ActiveSync (EAS) and Microsoft Entra Conditional Access policies are used to restrict, allow, or secure mobile device access to email. They do not modify the content of outgoing emails or remove local app signatures.

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