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Mail loses signatures

I have a new Mac Book Air (M2) and it's running Ventura 13.1. I finally got my email to work the way I like it and then discovered that Mail would not and could not save signatures. they disappear when I quit the app and start it up again.

MacBook Air, macOS 13.1

Posted on Jan 14, 2023 2:18 PM

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Posted on Feb 16, 2023 7:35 AM

Hello everyone.


I have had this issue for a few years now, but yesterday needed to make it work, so I found a lot of topics about this problem on the internet; it is evident that this issue affects many people and despite that, there's still no fix from Apple. So I tried to figure it out.




I located the directory where the signatures are stored in the system library. Three files are basically needed to assemble the single signature. The first file is .mailsignature (the file with your actual signature [you can have multiple of these .mailsignature files — one for each signature]), and the other two types are .plist files (one where you can find information about your signatures associated with accounts, and the other for listing of all your signatures). 


I found that when you create a new signature it is successfully written into a file called AccountsMap.plist, but there are no .mailsignature files created and that's probably the reason why it is not written into another .plist file (AllSignatures.plist). You can not write and create these files manually (at least, it didn't work for me). So I tried to turn off iCloud for Mail to see what is happening inside the library and it started to work perfectly and create all files you need to work with signatures. So it seems to me there is some problem with syncing into iCloud. 


(Don't try renaming or deleting any library files if you don't know what you’re doing, it can have fatal consequences (and if you do, always back up the original files).




The solution.

All you need to do is temporarily turn off iCloud for Mail, then create signatures and turn the iCloud for Mail on again, so it's an easy fix (unless Apple fixes it properly). To do this, follow the steps below:


  1. Quit the Mail app.
  2. Turn off iCloud for Mail (go to System Settings —> (your name) —> iCloud —> iCloud Drive —> Options —> (uncheck the Mail).
  3. Launch the Mail app.
  4. Create signatures as you want them, assign them to accounts, etc.
  5. Quit Mail
  6. Turn on iCloud for Mail (go to System Settings —> (your name) —> iCloud —> iCloud Drive —> Options —> (check the Mail).
  7. Launch the Mail app; all your signatures should be there.




Note 1:

You need to repeat this process every time you'd like to make changes or add a new signature. 


Note 2:

Signatures are still not synced over other devices (I am not sure if it's a bug or expected behavior and it is not supposed to be synced across all devices).




I hope this helps.

65 replies

Mar 3, 2023 6:15 PM in response to Zachary Smith1

After the latest Apple update, I found my 12 signatures in Mail were deleted. I was able to retrieve them from sent messages. I copied each into the center box with the +- controls at the bottom left of the center box. The only way I could use them was to enter the standard signature (3 lines: name, E-Mail address, Phone number) into the top of the right box with the "Check box followed by Always match my default message font" line at the bottom.

Next I copy pasted each signature from the center box one at a time under the standard signature, hitting the + for each addition until I had the 12 signatures back once again. I selected "Choose Signature:" at random at the bottom of the signatures panel. An example signature:


my name

E-Mail address

phone number

You can observe a lot by watching - Yogi Berra



Mar 17, 2023 3:50 PM in response to bradyinreno

I know signatures on phones and iPads are entirely different. I just thought there might be a way to sync them. Would be great!


Ok, so far it seems to work with the signatures. I hope it stays. I use quiet elaborate signature with many different colors, so its always a lot of work to recreate them as the colors seems to vanish when I copy them.


I hope for the best. Thanks anyway!

Aug 15, 2023 5:58 AM in response to Zachary Smith1

"System Preferences > iCloud > iCloud Drive > Options... >

Turn Mail OFF (Important: this is NOT the first Mail you see, in the

main iCloud window, this is the Mail in the iCloud Drive options

window). Click done."


The critical part that is missing from this fix is:


Once you have made your changes for signatures in Mail and quit the application, turn Mail back on in iCloud but DO NOT RUN THE MAIL APPLICATION FOR 30 MINUTES.


This will permanently fix the issue.



Apr 26, 2024 7:56 PM in response to Scienceboy7

Sorry to hear that.


It is possible that there could be other issues, or Apple may have made some changes since I found this solution. However, the signatures I have created are still working correctly. If you are determined to make it work, you can try navigating to the system library to understand what's going on with your system while proceeding with the steps and manually troubleshooting the signature files.

Mail loses signatures

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