On the website, the process is essentially the same as the mobile app. Enter your signature in the “Signature” box and tap the slider. As the signatures are applied when you first start the email, you can easily select and delete them if you don’t want them to be included or if you want to change them. Tip: The signatures are simply pasted a few lines into the email creation box when you first click “Compose”. The mobile signature and its counterpart on the website are always applied unless you pay for one of the premium tiers. In the “Signature” box enter the text that you want to be automatically attached at the end of your message, then tap the slider to the on position. Tap on your account then tap on “Display name & signature”. In the settings tap on your account name at the top, then tap “Display name & signature”. To change your signature in the mobile app you first need to tap on the burger menu icon in the top-left corner, then tap on “Settings”. If you’re using a ProtonMail email account, you can configure your email signature in the settings of either the web application or in the mobile app.

This works for both corporate and personal email addresses.

You can save yourself the time of doing so and having to check for typos by adding your sign off to the email signature. When writing emails, you often end up signing off the email, in the same way, most of the time.

How to create custom email signature