Image doesn't display in email signature in Mac Mail App when sent from iOS15 Mail App

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Image doesn't display in email signature in Mac Mail App when sent from iOS15 Mail App

I picked up my new iPhone 13 Pro running iOS15 last week.

I've installed my HTML email signature that worked fine (and continues to work fine) on my old iPhone 12 Pro running iOS 14.8.

If I send out an email with my signature from my new phone, the signature displays fine in all email clients (Hotmail/Outlook, Gmail, Outlook for Mac) except Mac Mail App (running on M1 MacBook Pro with latest Big Sur 11.6). In Mail App on Mac the signature disappears.

If anyone can help with a fix I'd be mighty appreciative! Otherwise I may have to return the new phone to Apple 😟

iPhone 13 Pro

Posted on Oct 1, 2021 4:52 PM

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Answer 1

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Greg Andresen Author

Level 1

118 points

Oct 1, 2021 9:32 PM in response to Greg Andresen

I worked out what the problem was.

Mail App will only display images that are hosted on a secure server (with the https:// prefix). Mine was http://
Mail App will only display images if both the width AND height HTML tags are present (my signature had width but not height specified)

Hope this helps others!

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