@girish Apple Mail supports HTML and Outlook also.
But I think @paenzy means to have a server level individual signature making use of user variables.
I really really like that idea as now in my organizations it’s a bit a mess because users need to create signatures themselves.
Yes, i mean an automatically adding signature on server level.
For now, if you want a company disclaimer with individual legal informations (I'm from Germany, legal informations are required), then you must add this on each device for each address. And if you must change a few data like phone or maybe fixing design issues, you need access to this device again and change this manually.
With this feature you don't need an exchange or something other expensive software and can managing all this easily in cloudron.