how do I export mac mail signatures?

Send yourself an email, copy and paste the signature into the signature section of the mail preferences on the other machine.

Close Mail in both machines.

In the computer where your signatures are, go to your user library (in OS Lion this is hidden, but you may access it by holding down the option (alt) key while clicking on "go" then you will see the library item in the list. Another option to access it is to go to finder, click on "go", select "go to folder" and paste this: "~/Library"

Once you are there, go to Mail - > v2 -> MailData

You will find a folder called "Signatures". Copy this folder.

Go to the same locatin in the other machine. Make a backup copy of the "Signatures" folder and replace it with the other machine's folder.

Open Mail and check everything is running.

Best

Thanks Momemor, this was exactly what I was looking for. Worked like a charm

Momemor has the right way if you have logos/hyperlinks in your signature. Nice One.

Hi - thanks for offering this. However, It didn't work going from Mail 5.3 to Mail 6.5 (OS 10.8) on my new machine.

The plist for signature allocation diff accounts has been changes.

Please correct me if I'm wrong.

Thank you. Works!

If you are using iCloud Drive, signatures are here

~/Library/Mobile\ Documents/com~apple~mail/Data/V4/Signatures/