The [URL] variable is the post's URL. This is already included in the email template. It is also added an ld+json document to let some mail clients (like Gmail) show a button in the summary view of your inbox to visit the post directly, without even opening the email.
The user's email address is not available. The whole point of having a ticket system is that you do not email the user directly, you use the ticket system.
The ticket system signature is always included in the email body. The signature does not have visibility settings; it is visible whenever a user's posts are visible. It it's a public ticket it will be visible to all visitors of your site, including guests.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!