wildduck: Allow sending only from @k-space.ee address in webmail

wildduck/webmail.yaml

@@ -27,14 +27,12 @@ metadata:
   namespace: wildduck
 data:
   www.toml: |-
-    name="Wild Duck Mail"
-    title="wildduck-www"
     [service]
-    domain="k-space.ee"
     identities=1
     allowIdentityEdit=false
     allowJoin=false
-    domains=[]
+    domains=["k-space.ee"]
+    allowSendFromOtherDomains=false
     [service.sso.http]
     enabled = true
     header = "Remote-Username"