Desktop
Mac
Windows
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New Outlook for Windows Paste the signature in Settings. This is the Windows 11 mail app.
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Outlook (classic) for Windows Replace the signature file classic Outlook stores on the PC.
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Thunderbird Tick Use HTML and paste the code, or attach the file.
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eM Client Paste the signature, or import the HTML file.
- M Mailbird Paste the signature as it looks into Identities.
Browser
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Gmail Copy the signature from a browser into Gmail settings.
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Outlook on the web Paste the signature into Outlook.com signature settings.
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Yahoo Mail Paste the signature into Writing email settings.
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Zoho Mail Paste the HTML source in Zoho’s signature editor.
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Proton Mail Paste the signature in the web app. The phone apps use that signature.
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Fastmail Turn on rich text, then paste the signature.
- R Roundcube Paste the HTML source into Identities. Common on cPanel webmail.
Mobile
iPhone
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iPhone Mail Email it to yourself, paste into Settings, then shake to undo.
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Gmail on iPhone Set it up in Gmail on the web. The iPhone app uses that signature.
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Outlook on iPhone Copy the signature from an email into the Outlook app.
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Spark on iPhone Paste the HTML into Spark. Use Universal Clipboard or email the file.