If you disable auto expunge in SquirrelMail 1.4.x you get an "Expunge"
button in the mailbox overview page. I noticed that both "Expunge" and
"Delete" are translated to "Löschen" in german. So you end up with
two identical buttons which confuses the users.
I propose to change the german translation of "Expunge" to something
different. E.g.: "Gelöschte entfernen". Additionally the word
"mailbox" right of the expunge button could then be changed to " ".