Email Signature for iPhone
Email signature configured for the Apple Mail app on iPhone and iPad, set in iOS Settings or deployed via mobile device management for organizational devices.
What is Email Signature for iPhone?
An email signature for iPhone (and iPad) is configured in Settings > Mail > Signature on the device, where the user enters either a single global signature or per-account signatures. iOS Mail supports plain-text and basic rich-text signatures but has limited support for HTML compared to desktop clients, which is why pasted HTML signatures often degrade visually. The default 'Sent from my iPhone' signature exists because Apple's per-device storage model and limited HTML support made consistent organizational signatures historically difficult. Organizations managing iPhones via mobile device management (Jamf, Intune, Kandji, Workspace ONE) can push signature configuration profiles to managed devices, ensuring corporate signatures override the default. For organizations using Microsoft 365 or Google Workspace mailboxes, server-side stamping is the most reliable approach: the signature is applied at the mail server before delivery, so it appears regardless of which iPhone Mail client or version the user is on. This eliminates the per-device configuration burden entirely.
Also known as
How does SyncSignature implement Email Signature for iPhone?
On Microsoft 365, SyncSignature's Outlook add-in applies the centrally managed signature when users compose from Outlook for iPhone. On Google Workspace, the Gmail API integration writes the signature to each user's sendAs settings, which applies in Gmail for iPhone. iPhone users on third-party mail clients may need to configure signatures manually on the device.