ui/sendviewcontroller.md

@@ -34,10 +34,20 @@ the state after composing is one of the following:
 *  Postcard
    -  to everyone 
       -  we have no key for every recipient
-      -  downgraded letter (could be the letter, but the user wants to send a letter)
+      -  downgraded letter/postcard (could be the letter for at least some recipients, but the user wants to send a postcard)
    -  some recipients will get a "secure" mail, because we have a key of them
    -  partial encrypted mail (parts of the message are encrypted)
    -  censored mail (not invertible destruction of text parts)
 
 ### other
 
+*  invitation
+   -  invite mail
+      -  compose a invite mail for recipients
+   -  no invite mail
+      -  default mail
+
+
+### equivalent states
+*  invite mail
+   -  equal to downgraded postcard/letter with a special input + missing ability to open a new invite mail