How to edit your mobile signature

By default, a mobile signature that says Sent from Proton Mail mobile is added to all emails you send from your iPhone, iPad, or Android device.

If you have a Free account, it’s not possible to edit or disable this mobile signature, although you can create a regular customized signature (which is shown in addition to the mobile signature).

To edit or disable the mobile signature you need to upgrade to a paid Proton Mail plan. If you have a paid plan, then you can edit or delete your mobile signature using the following steps.

1. Open the Proton Mail app on your Android/iOS mobile app and go to ≡ → Settings → Signature → Email signature.

2. Edit your email signature message.

You can also toggle the switch on or off to enable or disable the mobile signature.