This article will explain how to remove a signature in 123-mail webmail.
This will allow you to remove an old signature, or one you don't have use for anymore.
Login to the 123-mail webmail.
Click on the Configuration icon in the main toolbar.
Click on the E-mail folder in the left hand pane.
Click on the subfolder Signatures
Click on the Signature you wish to remove.
Click on the Remove button under the Signatures tab.
Click the Save icon to store the changes made.