diff --git a/storage.lua b/storage.lua
index 5bb0c56..0348f35 100644
--- a/storage.lua
+++ b/storage.lua
@@ -441,8 +441,11 @@ function mail.get_setting(playername, key)
 		or {entry.settings[key]})[1]
 
 	if mail.settings[key].sync then -- in case this setting is shared with another mod
-		value = mail.settings[key].sync(playername, key) -- get new value
-		mail.set_setting(playername, key, value, false) -- update the setting in mail storage and don't transfer it again
+		local sync_value = mail.settings[key].sync(playername) -- get new value
+		if sync_value then
+			value = sync_value
+			mail.set_setting(playername, key, value, true) -- update the setting in mail storage and don't transfer it again
+		end
 	end
 
 	return value
diff --git a/ui/inbox.lua b/ui/inbox.lua
index 220d70d..4d49837 100644
--- a/ui/inbox.lua
+++ b/ui/inbox.lua
@@ -103,6 +103,9 @@ function mail.show_inbox(name, sortfieldindex, sortdirection, filter)
             if message.spam then
                 table.insert(displayed_color, "warning")
             end
+            if table.indexof(mail.get_setting(name, "mute_list"), message.from) >= 1 then
+                table.insert(displayed_color, "muted")
+            end
             formspec[#formspec + 1] = "," .. mail.get_color(displayed_color)
             formspec[#formspec + 1] = ","
             formspec[#formspec + 1] = minetest.formspec_escape(message.from)
diff --git a/ui/message.lua b/ui/message.lua
index 55c0acf..f8c46c7 100644
--- a/ui/message.lua
+++ b/ui/message.lua
@@ -37,10 +37,13 @@ function mail.show_message(name, id)
 			button[7.25,1.0;2.75,1;reply;]] .. S("Reply") .. [[]
 			button[7.25,1.8;2.75,1;replyall;]] .. S("Reply all") .. [[]
 			button[7.25,2.6;2.75,1;forward;]] .. S("Forward") .. [[]
+
 			button[7.25,3.6;2.75,1;markspam;]] .. S("Mark Spam") .. [[]
 			button[7.25,4.4;2.75,1;unmarkspam;]] .. S("Unmark Spam") .. [[]
 
-			box[7.25,5.4;2.5,4.0;]] .. mail.get_color("disabled") .. [[]
+			button[7.25,5.4;2.75,1;togglemute;]] .. S("(Un)mute sender") .. [[]
+
+			box[7.25,6.4;2.5,3.0;]] .. mail.get_color("disabled") .. [[]
 
 			button[7.25,9.5;2.75,1;delete;]] .. S("Delete") .. [[]
 
@@ -145,6 +148,16 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	elseif fields.unmarkspam then
 		mail.unmark_spam(name, message.id)
 
+	elseif fields.togglemute then
+		local mutes = table.copy(mail.get_setting(name, "mute_list"))
+		local mute_indexof = table.indexof(mutes, message.from)
+		if mute_indexof == -1 then -- mute
+			table.insert(mutes, message.from)
+		else -- unmute
+			table.remove(mutes, mute_indexof)
+		end
+		mail.set_setting(name, "mute_list", mutes)
+
 	elseif fields.delete then
         if mail.get_setting(name, "trash_move_enable") and mail.selected_idxs.boxtab[name] ~= 4 then
 			mail.trash_mail(name, message.id)
diff --git a/util/colors.lua b/util/colors.lua
index cd88ad7..adc9aa4 100644
--- a/util/colors.lua
+++ b/util/colors.lua
@@ -7,6 +7,7 @@ local generic_colors = {
 	new            = "#00F529",
 	warning        = "#FF8800",
 	disabled       = "#332222",
+	muted          = "#CCCCCC",
 }
 
 local function get_base_color(c)
diff --git a/util/settings.lua b/util/settings.lua
index b0f345b..92da8f5 100644
--- a/util/settings.lua
+++ b/util/settings.lua
@@ -45,11 +45,16 @@ mail.settings = {
         type = "string", default = "%Y-%m-%d %X", group = "other", index = 3, label = S("Date format"),
         dataset = {"%Y-%m-%d %X", "%d/%m/%y %X", "%A %d %B %Y %X"}, format = os.date
     },
+    mute_list = {
+        type = "list", default = {}, group = "spam", index = 1,
+        label = S("Mute list")
+    },
 }
 
 mail.settings_groups = {
     { name = "notifications", label = S("Notifications")},
     { name = "message_list",  label = S("Message list")},
+    { name = "spam",          label = S("Spam")},
     { name = "other",         label = S("Other")}
 }
 
@@ -59,3 +64,44 @@ for s, d in pairs(mail.settings) do
         mail.selected_idxs["index_" .. s] = {}
     end
 end
+
+function mail.settings.mute_list.check(name, value)
+    local valid_players = {}
+    for _, p in ipairs(value) do
+        if p ~= name and minetest.player_exists(p) then
+            table.insert(valid_players, p)
+        end
+    end
+    return valid_players
+end
+
+function mail.settings.mute_list.sync(name)
+    if minetest.get_modpath("beerchat") then
+        local players = {}
+        for other_player, _ in minetest.get_auth_handler().iterate() do
+            if beerchat.has_player_muted_player(name, other_player) then
+                table.insert(players, other_player)
+            end
+        end
+        return players
+    end
+    return nil
+end
+
+function mail.settings.mute_list.transfer(name, value)
+    if minetest.get_modpath("beerchat") then
+        for other_player, _ in minetest.get_auth_handler().iterate() do -- unmute all
+            if not beerchat.execute_callbacks("before_mute", name, other_player) then
+                return false
+            end
+            minetest.get_player_by_name(name):get_meta():set_string(
+				"beerchat:muted:" .. other_player, "")
+        end
+        for _, other_player in ipairs(value) do -- then mute only players in table
+            minetest.get_player_by_name(name):get_meta():set_string(
+                    "beerchat:muted:" .. other_player, "true")
+        end
+        return true
+    end
+    return nil
+end