diff --git a/init.lua b/init.lua
index 43ffd1b..da280bb 100644
--- a/init.lua
+++ b/init.lua
@@ -30,6 +30,10 @@ if minetest.get_modpath("default") then
 	mail.theme = default.gui_bg .. default.gui_bg_img
 end
 
+-- translation
+S = minetest.get_translator("mail")
+
+-- sub files
 local MP = minetest.get_modpath(minetest.get_current_modname())
 dofile(MP .. "/util/normalize.lua")
 dofile(MP .. "/util/uuid.lua")
diff --git a/ui/inbox.lua b/ui/inbox.lua
index 3ed97f4..fcb78b9 100644
--- a/ui/inbox.lua
+++ b/ui/inbox.lua
@@ -1,18 +1,18 @@
-local inbox_formspec = "size[8,10;]" .. mail.theme .. [[
+local inbox_formspec = "size[8.5,10;]" .. mail.theme .. [[
     tabheader[0.3,1;boxtab;]] .. S("Inbox") .. "," .. S("Sent messages") .. [[;1;false;false]
 
-    button[6,0.10;2,0.5;new;]] .. S("New") .. [[]
-    button[6,0.95;2,0.5;read;]] .. S("Read") .. [[]
-    button[6,1.70;2,0.5;reply;]] .. S("Reply") .. [[]
-    button[6,2.45;2,0.5;replyall;]] .. S("Reply all") .. [[]
-    button[6,3.20;2,0.5;forward;]] .. S("Forward") .. [[]
-    button[6,3.95;2,0.5;delete;]] .. S("Delete") .. [[]
-    button[6,4.82;2,0.5;markread;]] .. S("Mark Read") .. [[]
-    button[6,5.55;2,0.5;markunread;]] .. S("Mark Unread") .. [[]
-    button[6,6.8;2,0.5;contacts;]] .. S("Contacts") .. [[]
-    button[6,7.6;2,0.5;maillists;]] .. S("Mail lists") .. [[]
-    button[6,8.7;2,0.5;about;]] .. S("About") .. [[]
-    button_exit[6,9.5;2,0.5;quit;]] .. S("Close") .. [[]
+    button[6,0.10;2.5,0.5;new;]] .. S("New") .. [[]
+    button[6,0.95;2.5,0.5;read;]] .. S("Read") .. [[]
+    button[6,1.70;2.5,0.5;reply;]] .. S("Reply") .. [[]
+    button[6,2.45;2.5,0.5;replyall;]] .. S("Reply all") .. [[]
+    button[6,3.20;2.5,0.5;forward;]] .. S("Forward") .. [[]
+    button[6,3.95;2.5,0.5;delete;]] .. S("Delete") .. [[]
+    button[6,4.82;2.5,0.5;markread;]] .. S("Mark Read") .. [[]
+    button[6,5.55;2.5,0.5;markunread;]] .. S("Mark Unread") .. [[]
+    button[6,6.8;2.5,0.5;contacts;]] .. S("Contacts") .. [[]
+    button[6,7.6;2.5,0.5;maillists;]] .. S("Mail lists") .. [[]
+    button[6,8.7;2.5,0.5;about;]] .. S("About") .. [[]
+    button_exit[6,9.5;2.5,0.5;quit;]] .. S("Close") .. [[]
 
     tablecolumns[color;text;text]
     table[0,0.7;5.75,9.35;inbox;#999,]] .. S("From") .. "," .. S("Subject")
diff --git a/ui/outbox.lua b/ui/outbox.lua
index 298d627..6377405 100644
--- a/ui/outbox.lua
+++ b/ui/outbox.lua
@@ -1,16 +1,16 @@
-local sent_formspec = "size[8,10;]" .. mail.theme .. [[
+local sent_formspec = "size[8.5,10;]" .. mail.theme .. [[
     tabheader[0.3,1;boxtab;]] .. S("Inbox") .. "," .. S("Sent messages") .. [[;2;false;false]
 
-    button[6,0.10;2,0.5;new;]] .. S("New") .. [[]
-    button[6,0.95;2,0.5;read;]] .. S("Read") .. [[]
-    button[6,1.70;2,0.5;reply;]] .. S("Reply") .. [[]
-    button[6,2.45;2,0.5;replyall;]] .. S("Reply all") .. [[]
-    button[6,3.20;2,0.5;forward;]] .. S("Forward") .. [[]
-    button[6,3.95;2,0.5;delete;]] .. S("Delete") .. [[]
-    button[6,6.8;2,0.5;contacts;]] .. S("Contacts") .. [[]
-    button[6,7.6;2,0.5;maillists;]] .. S("Mail lists") .. [[]
-    button[6,8.7;2,0.5;about;]] .. S("About") .. [[]
-    button_exit[6,9.5;2,0.5;quit;]] .. S("Close") .. [[]
+    button[6,0.10;2.5,0.5;new;]] .. S("New") .. [[]
+    button[6,0.95;2.5,0.5;read;]] .. S("Read") .. [[]
+    button[6,1.70;2.5,0.5;reply;]] .. S("Reply") .. [[]
+    button[6,2.45;2.5,0.5;replyall;]] .. S("Reply all") .. [[]
+    button[6,3.20;2.5,0.5;forward;]] .. S("Forward") .. [[]
+    button[6,3.95;2.5,0.5;delete;]] .. S("Delete") .. [[]
+    button[6,6.8;2.5,0.5;contacts;]] .. S("Contacts") .. [[]
+    button[6,7.6;2.5,0.5;maillists;]] .. S("Mail lists") .. [[]
+    button[6,8.7;2.5,0.5;about;]] .. S("About") .. [[]
+    button_exit[6,9.5;2.5,0.5;quit;]] .. S("Close") .. [[]
 
     tablecolumns[color;text;text]
     table[0,0.7;5.75,9.35;sent;#999,]] .. S("To") .. "," .. S("Subject")