Apple Mail Signature images loading as Question Marks after updates on desktop and iOS

Looking into an email Signature issue with apple mail thats has always worked.

I Have seen a few other posts looking into 3rd party programs conflicting which I will look into and This seems to have started after Monteray update.

this is an html signature, Images are all hosted online and have not been moved.

The signature works properly through a browser and outside apple mail just not through apple mail after Monterey or iOS after it's update to ios15.

MacBook Pro 15″, macOS 10.15

Posted on Oct 27, 2021 3:15 PM

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Posted on Jan 25, 2022 12:54 PM

Ok All, so what I ended up doing that now works using the same html for a signature in apple mail, gmail and outlook clients is simply use dropbox to host the images.

Base 64 code was unfortunately too long for gmail to use as a signature.

hosted images on hostmonster, iPage, or 1and1 didn't work but dropbox did.

created the share link and replaced the "dl=0" at the end for "raw=1".





55 replies

Nov 3, 2021 8:54 AM in response to hofner465

None of the trouble shooting has worked for me or other people from my team having the same problem.

Just got back an iMac that had drive failure, it was fixed by apple and had nothing but Monterey on it when I got it back so I wanted to test this before fully setting the thing up. won't even let me add signature so far ( they delete when mail closes and there is no signatures folder created). so that's fun, but I can see from the email threads that the signature issue remains.


when I look at through icloud's webmail it also doesn't work at first but gives the notice "this email contains remote content." after selecting "load remote content" the signature does show. so even though I have turned all those privacy features off in the desktop app it does seem to be a bug that still blocks the signature. However, newsletters iCloud blocks the remote content on through web are coming in just fine in the desktop app.

Nov 3, 2021 6:47 PM in response to Matthew Buchanan

Thank you Matthew, I’m glad it is working a bit better for you. that is not the case for me in iOS or the desktop app. I’m also finding I will get newsletters with and without the warning where images load fine but people with html signatures images are broken and don’t have the load remote content option. On desktop and iOS newsletters don’t even ask for remote content loading but the images aren’t broken either.

even if this was the case (sent e-mails gave the option) that’s a strange feature to just trust the signature is sending out fine but appears broken for the user. I appreciate the new privacy features but html email signatures aren’t exactly a novel item so a bit odd to throw a wrench in there without some guidance or an alternative.

i will attempt Apple support next to see what I might be missing

Jan 19, 2022 2:20 PM in response to GFIVE

There is a zero width space (0xfeff) character in front of background and background-image. You can see these aren't purple like the others. Once removed it works fine. You can't really see them but if you move the cursor with the left/right arrow keys you'll notice it gets stuck and you need to press twice to advance once.


Your base64 url is not right though, way too short. Try pasting the url directly into the address bar to test if it works.


In some mail clients both logos will work and show on top of each other. Since yours has transparancy it may look a bit different then. You might want to give the image a solid background color.

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Apple Mail Signature images loading as Question Marks after updates on desktop and iOS

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