Note: Make sure you use Google Chrome or Mozilla Firefox during installation.
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Create your email signature on MySignature.io and follow these simple steps to install it in Proton Mail:
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Step 1.

After creating your email signature, click Save signature button under the signature preview.

Or, if you have saved your signature, find your signature on the Dashboard and click Install button.

​Step 2.
​Next, open the installation page for Outlook and click Copy to clipboard button.
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Step 3.
​Open Proton Mail, click Settings (gear icon), and click All Settings.
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Step 4.
Scroll down to the Proton Mail section and click Identity and addresses.
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​Step 5.
​Paste your signature to the Signature box and click Update.
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Step 6.
Now, click New message button to create a new message to see your professional signature in action.
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