diff --git a/hosts/nb-new.cloonar.com/users/dominik.nix b/hosts/nb-new.cloonar.com/users/dominik.nix
index a414c9b..3cf009f 100644
--- a/hosts/nb-new.cloonar.com/users/dominik.nix
+++ b/hosts/nb-new.cloonar.com/users/dominik.nix
@@ -205,14 +205,14 @@ in
         signature = {
           showSignature = "append";
           text = ''
-            <p><font color=3D"#666666">Dominik Polakovics</font></p>
-            <p><font color=3D"#666666">&lt;Signature<br></font>
-            <font color=3D"#666666">&nbsp;=</font><span style=3D"color: inherit; font-size: 1.1em;">firstName=3D"</span><span style=3D"font-size: 1.1em; color: rgb(237, 92, 87);">Dominik</span><span style=3D"color: inherit; font-size: 1.1em;">"<br></span>
-            <span style=3D"color: inherit; font-size: 1.1em;">&nbsp; lastName=3D"</span><span style=3D"font-size: 1.1em; color: rgb(237, 92, 87);">Polakovics</span><span style=3D"color: inherit; font-size: 1.1em;">"<br></span>
-            <span style=3D"color: inherit; font-size: 1.1em;">&nbsp; company=3D"</span><span style=3D"font-size: 1.1em; color: rgb(81, 167, 249);">Cloonar e.U.</span><span style=3D"color: inherit; font-size: 1.1em;">"<br></span>
-            <span style=3D"color: inherit; font-size: 1.1em;">&nbsp; scope=3D"</span><span style=3D"font-size: 1.1em; color: rgb(81, 167, 249);">IT Solutions</span><span style=3D"color: inherit; font-size: 1.1em;">"<br></span><span style=3D"color: inherit; font-size: 1.1em;">&nbsp; phone=3D"</span><span style=3D"font-size: 1.1em; color: rgb(81, 167, 249);">+436688700600</span><span style=3D"color: inherit; font-size: 1.1em;">"<br></span>
-            <span style=3D"color: inherit; font-size: 1.1em;">&nbsp; email=3D"</span><span style=3D"font-size: 1.1em; color: rgb(81, 167, 249);">dominik.polakovics@cloonar.com</span><span style=3D"font-size: 1.1em;">"<br></span>
-            <span style=3D"color: rgb(102, 102, 102); font-size: 1.1em;">/&gt;</span></p>
+            <p><font color="#666666">Dominik Polakovics</font></p>
+            <p><font color="#666666">&lt;Signature<br></font>
+            <font color="#666666">&nbsp; </font><span style="color: inherit; font-size: 1.1em;">firstName="</span><span style="font-size: 1.1em; color: rgb(237, 92, 87);">Dominik</span><span style="color: inherit; font-size: 1.1em;">"<br></span>
+            <span style="color: inherit; font-size: 1.1em;">&nbsp; lastName="</span><span style="font-size: 1.1em; color: rgb(237, 92, 87);">Polakovics</span><span style="color: inherit; font-size: 1.1em;">"<br></span>
+            <span style="color: inherit; font-size: 1.1em;">&nbsp; company="</span><span style="font-size: 1.1em; color: rgb(81, 167, 249);">Cloonar e.U.</span><span style="color: inherit; font-size: 1.1em;">"<br></span>
+            <span style="color: inherit; font-size: 1.1em;">&nbsp; scope="</span><span style="font-size: 1.1em; color: rgb(81, 167, 249);">IT Solutions</span><span style="color: inherit; font-size: 1.1em;">"<br></span><span style="color: inherit; font-size: 1.1em;">&nbsp; phone="</span><span style="font-size: 1.1em; color: rgb(81, 167, 249);">+436688700600</span><span style="color: inherit; font-size: 1.1em;">"<br></span>
+            <span style="color: inherit; font-size: 1.1em;">&nbsp; email="</span><span style="font-size: 1.1em; color: rgb(81, 167, 249);">dominik.polakovics@cloonar.com</span><span style="font-size: 1.1em;">"<br></span>
+            <span style="color: rgb(102, 102, 102); font-size: 1.1em;">/&gt;</span></p>
           '';
         };
         imap = {
@@ -230,9 +230,10 @@ in
         thunderbird = {
           enable = true;
           profiles = [ "cloonar" "work" ];
-          settings = {
+          settings = id: {
             "mail.identity.id_${id}.reply_on_top" = 1;
             "mail.identity.id_${id}.sig_bottom" = false;
+            "mail.identity.id_${id}.htmlSigFormat" = true;
           };
         };
       };