I have several Gmail IDs that are set to auto-forward (and delete the original incoming email so as to keep the inbox empty) to my main Gmail. I have a signature set up in each of them that is meant to tell me which Gmail the original email was sent to (and then forwarded to my main Gmail). The forwarding is working fine, but the signature is not being inserted. I have them set to insert the signatures in all new and reply/forward emails in settings.
Can anyone help?