Footer note for outgoing mails in SAP.

[Krish_WUG]

Our client wants to incoroporate their standard foot note for any email that
is going out of the SAP system.
However, if the mail is triggered either from a custom program or a workflow
then we can add the footer to the mail.
But if some one is sending an email using any SAP tcodes like SO00 or from
any ALV report screen then the foot note is not added.
 
So is there any way where we can globally attach the standard foot note to
the emails that are going out of the system ?
I appreciate sharing any info on this.
 
 
Regards,
Kris.