diff --git a/chatcommands.lua b/chatcommands.lua
index 044d246..284c49c 100644
--- a/chatcommands.lua
+++ b/chatcommands.lua
@@ -1,6 +1,6 @@
 minetest.register_chatcommand("mail",{
 	description = "Open the mail interface",
 	func = function(name)
-		mail.show_inbox(name)
+		mail.show_inbox(name, "3", "1", "")
 	end
 })
diff --git a/locale/mail.de.tr b/locale/mail.de.tr
index 1496550..8d03913 100644
--- a/locale/mail.de.tr
+++ b/locale/mail.de.tr
@@ -3,12 +3,12 @@ BCC=BCC
 Cancel=Abbrechen
 Save draft=Entwurf Speichern
 Send=Senden
-Subject=Betreff
-To=An
 CC=CC
-No drafts=Keine Entwürfe
+Edit=Bearbeiten
+Note=Notiz
 New=Neu
-Delete=Löschen
+Name=Name
+No drafts=Keine Entwürfe
 Player name=Spielername
 your contacts.=ihre Kontakte.
 The contact=Der Kontakt
@@ -17,21 +17,20 @@ Desc=Beschreibung
 Players=Spieler
 your maillists.=ihre Verteilerlisten.
 The maillist=Die Verteilerliste
+Back=Zurück
 Save=Speichern
 That name=Der Name
 is already in=ist bereits in
 name cannot=Name kann nicht
 be empty.=leer sein.
-Back=Zurück
 Mark Read=Als gelesen makieren
 Mark Unread=Als ungelesen makieren
-(No description)=(Keine Beschreibung)
-No maillist=Keine Verteilerliste
-Note=Notiz
-Edit=Bearbeiten
-Name=Name
-Date=Datum
 From=Von
+Read=Lesen
+Ascending=
+Descending=
+Filter=
+No mail=Keine Nachrichten
 Inbox=Posteingang
 Sent messages=Nachrichten senden
 Drafts=Entwürfe
@@ -40,10 +39,14 @@ Mail lists=Verteilerlisten
 About=Über
 Close=Schließen
 (No subject)=(Kein Betreff)
-Read=Lesen
-No mail=Keine Nachrichten
+Date=Datum
 Reply=Antworten
 Reply all=Allen antworten
 Forward=Weiter
+(No description)=(Keine Beschreibung)
+No maillist=Keine Verteilerliste
+Subject=Betreff
+To=An
+Delete=Löschen
 Add=Hinzufügen
-Remove=Entfernen
\ No newline at end of file
+Remove=Entfernen
diff --git a/locale/mail.fr.tr b/locale/mail.fr.tr
index 7f98350..c69b55e 100644
--- a/locale/mail.fr.tr
+++ b/locale/mail.fr.tr
@@ -3,19 +3,12 @@ BCC=Cci
 Cancel=Annuler
 Save draft=Enregistrer le brouillon
 Send=Envoyer
+CC=Cc
 Edit=Modifier
-No drafts=
-Inbox=Boîte de réception
-Sent messages=Messages envoyés
-Drafts=Brouillons
-Contacts=Contacts
-Mail lists=Listes de diffusion
-About=À propos
-Close=Fermer
-(No subject)=(Sans objet)
-Delete=Supprimer
+Note=Note
 New=Nouveau
-Subject=Objet
+Name=Nom
+No drafts=Pas de brouillons
 Player name=Nom du joueur
 your contacts.=vos contacts.
 The contact=Ce contact
@@ -24,6 +17,7 @@ Desc=Desc
 Players=Joueurs
 your maillists.=vos listes de diffusion.
 The maillist=Cette liste de diffusion
+Back=Retour
 Save=Sauvegarder
 That name=Ce nom
 is already in=existe déjà
@@ -32,18 +26,27 @@ be empty.=être vide.
 Mark Read=Marquer comme lu
 Mark Unread=Marquer non lu
 From=De
+Read=Lire
+Ascending=Croissant
+Descending=Décroissant
+Filter=Filtre
+No mail=Aucun mail
+Inbox=Boîte de réception
+Sent messages=Messages envoyés
+Drafts=Brouillons
+Contacts=Contacts
+Mail lists=Listes de diffusion
+About=À propos
+Close=Fermer
+(No subject)=(Sans objet)
+Date=Date
 Reply=Répondre
 Reply all=Répondre à tous
 Forward=Transférer
-Read=Lire
-No mail=Aucun mail
 (No description)=Sans description
 No maillist=Aucune liste de diffusion
-Date=Date
+Subject=Objet
+To=À
+Delete=Supprimer
 Add=Ajouter
 Remove=Enlever
-CC=Cc
-Back=Retour
-Name=Nom
-To=À
-Note=Note
diff --git a/locale/mail.zh_TW.tr b/locale/mail.zh_TW.tr
index c0e658f..139758f 100644
--- a/locale/mail.zh_TW.tr
+++ b/locale/mail.zh_TW.tr
@@ -3,19 +3,12 @@ BCC=密件副本
 Cancel=取消
 Save draft=儲存草稿
 Send=發送
+CC=副本
 Edit=編輯
-No drafts=沒有草稿
-Inbox=收件箱
-Sent messages=寄件備份
-Drafts=草稿
-Contacts=聯繫人
-Mail lists=郵件列表
-About=關於
-Close=關閉
-(No subject)=（沒有主旨）
-Delete=刪除
+Note=備註
 New=新建
-Subject=主旨
+Name=名稱
+No drafts=沒有草稿
 Player name=玩家名稱
 your contacts.=
 The contact=
@@ -24,6 +17,7 @@ Desc=描述
 Players=玩家
 your maillists.=
 The maillist=
+Back=返回
 Save=儲存
 That name=
 is already in=
@@ -32,18 +26,27 @@ be empty.=
 Mark Read=標記已讀
 Mark Unread=標記未讀
 From=寄件者
+Read=閱讀
+Ascending=
+Descending=
+Filter=
+No mail=沒有郵件
+Inbox=收件箱
+Sent messages=寄件備份
+Drafts=草稿
+Contacts=聯繫人
+Mail lists=郵件列表
+About=關於
+Close=關閉
+(No subject)=（沒有主旨）
+Date=日期
 Reply=回覆
 Reply all=回覆所有人
 Forward=轉寄
-Read=閱讀
-No mail=沒有郵件
 (No description)=（沒有描述）
 No maillist=沒有郵件列表
-Date=日期
+Subject=主旨
+To=收件人
+Delete=刪除
 Add=加入
 Remove=移除
-CC=副本
-Back=返回
-Name=名稱
-To=收件人
-Note=備註
diff --git a/locale/template.txt b/locale/template.txt
index d7e75c5..719a766 100644
--- a/locale/template.txt
+++ b/locale/template.txt
@@ -3,19 +3,12 @@ BCC=
 Cancel=
 Save draft=
 Send=
+CC=
 Edit=
-No drafts=
-Inbox=
-Sent messages=
-Drafts=
-Contacts=
-Mail lists=
-About=
-Close=
-(No subject)=
-Delete=
+Note=
 New=
-Subject=
+Name=
+No drafts=
 Player name=
 your contacts.=
 The contact=
@@ -24,6 +17,7 @@ Desc=
 Players=
 your maillists.=
 The maillist=
+Back=
 Save=
 That name=
 is already in=
@@ -32,18 +26,27 @@ be empty.=
 Mark Read=
 Mark Unread=
 From=
+Read=
+Ascending=
+Descending=
+Filter=
+No mail=
+Inbox=
+Sent messages=
+Drafts=
+Contacts=
+Mail lists=
+About=
+Close=
+(No subject)=
+Date=
 Reply=
 Reply all=
 Forward=
-Read=
-No mail=
 (No description)=
 No maillist=
-Date=
+Subject=
+To=
+Delete=
 Add=
 Remove=
-CC=
-Back=
-Name=
-To=
-Note=
diff --git a/storage.lua b/storage.lua
index cd8cffd..a3e6488 100644
--- a/storage.lua
+++ b/storage.lua
@@ -43,6 +43,77 @@ function mail.get_message(playername, msg_id)
 	end
 end
 
+function mail.sort_messages(unsorted_messages, sortfield, sortdirection)
+    local messages = {}
+    if not sortfield or sortfield == "" then
+        sortfield = "3"
+    end
+    if not sortdirection or sortdirection == "" then
+		sortdirection = "1"
+	end
+
+	if unsorted_messages[1] then
+		-- add first message
+		table.insert(messages, unsorted_messages[1])
+		table.remove(unsorted_messages, 1)
+		-- sort messages
+		for _, unsorted_msg in ipairs(unsorted_messages) do
+			local is_message_sorted = false
+			for j, sorted_msg in ipairs(messages) do
+				if sortfield == "1" and unsorted_msg.from >= sorted_msg.from then -- for inbox
+					table.insert(messages, j, unsorted_msg)
+					is_message_sorted = true
+					break
+				elseif sortfield == "1" and unsorted_msg.to >= sorted_msg.to then -- for outbox
+					table.insert(messages, j, unsorted_msg)
+					is_message_sorted = true
+					break
+				elseif sortfield == "2" and unsorted_msg.subject >= sorted_msg.subject then
+					table.insert(messages, j, unsorted_msg)
+					is_message_sorted = true
+					break
+				elseif sortfield == "3" and unsorted_msg.time >= sorted_msg.time then
+					table.insert(messages, j, unsorted_msg)
+					is_message_sorted = true
+					break
+				end
+			end
+			if not is_message_sorted then
+				table.insert(messages, 1, unsorted_msg)
+			end
+		end
+	end
+
+	-- reverse for descending
+
+	local sorted_messages = messages
+
+	if sortdirection == "2" then
+		sorted_messages = {}
+		for i=#messages, 1, -1 do
+			sorted_messages[#sorted_messages+1] = messages[i]
+		end
+	end
+
+	return sorted_messages
+end
+
+function mail.filter_messages(unfiltered_messages, filter)
+	if not filter or filter == "" then
+		return unfiltered_messages
+	end
+
+	local filtered_messages = {}
+
+	for _, msg in ipairs(unfiltered_messages) do
+		if string.find(msg.from, filter) or string.find(msg.to, filter) or string.find(msg.subject, filter) then
+			table.insert(filtered_messages, msg)
+		end
+	end
+
+	return filtered_messages
+end
+
 -- marks a mail read by its id
 function mail.mark_read(playername, msg_id)
 	local entry = mail.get_storage_entry(playername)
diff --git a/ui/events.lua b/ui/events.lua
index ae0f823..8722ad4 100644
--- a/ui/events.lua
+++ b/ui/events.lua
@@ -8,10 +8,34 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
     -- split inbox and sent msgs for different tests
     local entry = mail.get_storage_entry(name)
 
-    local messagesInbox = entry.inbox
-    local messagesSent = entry.outbox
+    local messagesInboxUnAnalyzed = entry.inbox
+    local messagesOutBoxUnAnalyzed = entry.outbox
     local messagesDrafts = entry.drafts
 
+    -- filter inbox/outbox messages
+
+    local filter = fields.filter
+    if not filter then
+        filter = ""
+    end
+
+    local messagesInboxFiltered = mail.filter_messages(messagesInboxUnAnalyzed, filter)
+    local messagesOutboxFiltered = mail.filter_messages(messagesOutBoxUnAnalyzed, filter)
+
+    -- then sort them
+
+    local sortfield = tostring(fields.sortfield)
+    local sortdirection = tostring(fields.sortdirection)
+    if not sortfield or sortfield == "" or sortfield == "0" then
+        sortfield = "3"
+    end
+    if not sortdirection or sortdirection == "" or sortdirection == "0" then
+        sortdirection = "1"
+    end
+
+    local messagesInbox = mail.sort_messages(messagesInboxFiltered, sortfield, sortdirection, filter)
+    local messagesSent = mail.sort_messages(messagesOutboxFiltered, sortfield, sortdirection, filter)
+
     if fields.inbox then -- inbox table
         local evt = minetest.explode_table_event(fields.inbox)
         mail.selected_idxs.inbox[name] = evt.row - 1
@@ -48,11 +72,11 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 
     if fields.boxtab == "1" then
         mail.selected_idxs.boxtab[name] = 1
-        mail.show_inbox(name)
+        mail.show_inbox(name, sortfield, sortdirection, filter)
 
     elseif fields.boxtab == "2" then
         mail.selected_idxs.boxtab[name] = 2
-        mail.show_sent(name)
+        mail.show_sent(name, sortfield, sortdirection, filter)
 
     elseif fields.boxtab == "3" then
         mail.selected_idxs.boxtab[name] = 3
@@ -86,7 +110,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
             mail.delete_mail(name, messagesDrafts[mail.selected_idxs.drafts[name]].id)
         end
 
-        mail.show_mail_menu(name)
+        mail.show_mail_menu(name, sortfield, sortdirection, filter)
 
     elseif fields.reply then
         if formname == "mail:inbox" and messagesInbox[mail.selected_idxs.inbox[name]] then
@@ -122,7 +146,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
             mail.mark_read(name, messagesSent[mail.selected_idxs.sent[name]].id)
         end
 
-        mail.show_mail_menu(name)
+        mail.show_mail_menu(name, sortfield, sortdirection, filter)
 
     elseif fields.markunread then
         if formname == "mail:inbox" and messagesInbox[mail.selected_idxs.inbox[name]] then
@@ -131,7 +155,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
             mail.mark_unread(name, messagesSent[mail.selected_idxs.sent[name]].id)
         end
 
-        mail.show_mail_menu(name)
+        mail.show_mail_menu(name, sortfield, sortdirection, filter)
 
     elseif fields.new then
         mail.show_compose(name)
@@ -145,6 +169,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
     elseif fields.about then
         mail.show_about(name)
 
+    elseif fields.sortfield or fields.sortdirection or fields.filter then
+        mail.show_mail_menu(name, sortfield, sortdirection, filter)
     end
 
     return true
diff --git a/ui/inbox.lua b/ui/inbox.lua
index b9ab082..1d76b14 100644
--- a/ui/inbox.lua
+++ b/ui/inbox.lua
@@ -1,30 +1,50 @@
 -- translation
 local S = minetest.get_translator("mail")
 
-local inbox_formspec = "size[8.5,10;]" .. mail.theme .. [[
-    tabheader[0.3,1;boxtab;]] .. S("Inbox") .. "," .. S("Sent messages").. "," .. S("Drafts") .. [[;1;false;false]
 
-    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") .. [[]
+function mail.show_inbox(name, sortfield, sortdirection, filter)
+    if not sortfield or sortfield == "" or sortfield == "0" then
+        sortfield = 3
+    end
+    if not sortdirection or sortdirection == "" or sortdirection == "0" then
+        sortdirection = 1
+    end
 
-    tablecolumns[color;text;text]
-    table[0,0.7;5.75,9.35;inbox;#999,]] .. S("From") .. "," .. S("Subject")
+    sortfield = tostring(sortfield)
+    sortdirection = tostring(sortdirection)
 
+    if not filter then
+        filter = ""
+    end
 
-function mail.show_inbox(name)
+    local inbox_formspec = "size[8.5,10;]" .. mail.theme .. [[
+        tabheader[0.3,1;boxtab;]] .. S("Inbox") .. "," .. S("Sent messages").. "," .. S("Drafts") .. [[;1;false;false]
+
+        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") .. [[]
+
+        dropdown[0,9.4;2,0.5;sortfield;]] ..
+        S("From") .. "," .. S("Subject") .. "," .. S("Date") .. [[;]] .. tostring(sortfield) .. [[;1]
+        dropdown[2.0,9.4;2,0.5;sortdirection;]] ..
+        S("Ascending") .. "," .. S("Descending") .. [[;]] .. tostring(sortdirection) .. [[;1]
+        field[4.25,9.85;1.4,0.5;filter;]] .. S("Filter") .. [[:;]] .. filter .. [[]
+        button[5.14,9.52;0.85,0.5;search;Q]
+
+        tablecolumns[color;text;text]
+        table[0,0.7;5.75,8.35;inbox;#999,]] .. S("From") .. "," .. S("Subject")
     local formspec = { inbox_formspec }
     local entry = mail.get_storage_entry(name)
-    local messages = entry.inbox
+    local messages = mail.sort_messages(mail.filter_messages(entry.inbox, filter), sortfield, sortdirection)
 
     mail.message_drafts[name] = nil
 
diff --git a/ui/mail.lua b/ui/mail.lua
index 6f7cbe0..3f685e9 100644
--- a/ui/mail.lua
+++ b/ui/mail.lua
@@ -1,11 +1,11 @@
 -- helper function for tabbed overview
 
-function mail.show_mail_menu(playername)
+function mail.show_mail_menu(playername, sortfield, sortdirection, filter)
     local index = mail.selected_idxs.boxtab[playername] or 1
     if index == 1 then
-        mail.show_inbox(playername)
+        mail.show_inbox(playername, sortfield, sortdirection, filter)
     elseif index == 2 then
-        mail.show_sent(playername)
+        mail.show_sent(playername, sortfield, sortdirection, filter)
     elseif index == 3 then
         mail.show_drafts(playername)
     end
diff --git a/ui/outbox.lua b/ui/outbox.lua
index 0eeecc6..3466e5e 100644
--- a/ui/outbox.lua
+++ b/ui/outbox.lua
@@ -1,28 +1,48 @@
 -- translation
 local S = minetest.get_translator("mail")
 
-local sent_formspec = "size[8.5,10;]" .. mail.theme .. [[
-    tabheader[0.3,1;boxtab;]] .. S("Inbox") .. "," .. S("Sent messages").. "," .. S("Drafts") .. [[;2;false;false]
 
-    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") .. [[]
+function mail.show_sent(name, sortfield, sortdirection, filter)
+    if not sortfield or sortfield == "" or sortfield == "0" then
+        sortfield = 3
+    end
+    if not sortdirection or sortdirection == "" or sortdirection == "0" then
+        sortdirection = 1
+    end
 
-    tablecolumns[color;text;text]
-    table[0,0.7;5.75,9.35;sent;#999,]] .. S("To") .. "," .. S("Subject")
+    sortfield = tostring(sortfield)
+    sortdirection = tostring(sortdirection)
 
+    if not filter then
+        filter = ""
+    end
 
-function mail.show_sent(name)
+	local sent_formspec = "size[8.5,10;]" .. mail.theme .. [[
+		tabheader[0.3,1;boxtab;]] .. S("Inbox") .. "," .. S("Sent messages").. "," .. S("Drafts") .. [[;2;false;false]
+
+		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") .. [[]
+
+        dropdown[0,9.4;2,0.5;sortfield;]]
+        .. S("To") .. "," .. S("Subject") .. "," .. S("Date") .. [[;]] .. tostring(sortfield) .. [[;1]
+        dropdown[2.0,9.4;2,0.5;sortdirection;]]
+        .. S("Ascending") .. "," .. S("Descending") .. [[;]] .. tostring(sortdirection) .. [[;1]
+        field[4.25,9.85;1.4,0.5;filter;]].. S("Filter") .. [[:;]] .. filter .. [[]
+        button[5.14,9.52;0.85,0.5;search;Q]
+
+		tablecolumns[color;text;text]
+		table[0,0.7;5.75,8.35;sent;#999,]] .. S("To") .. "," .. S("Subject")
 	local formspec = { sent_formspec }
 	local entry = mail.get_storage_entry(name)
-	local messages = entry.outbox
+    local messages = mail.sort_messages(mail.filter_messages(entry.outbox, filter), sortfield, sortdirection)
 
 	mail.message_drafts[name] = nil