diff --git a/UI/MailPartViewers/Welsh.lproj/Localizable.strings b/UI/MailPartViewers/Welsh.lproj/Localizable.strings
index 72ca3e9dd..1df640d5f 100644
--- a/UI/MailPartViewers/Welsh.lproj/Localizable.strings
+++ b/UI/MailPartViewers/Welsh.lproj/Localizable.strings
@@ -47,3 +47,4 @@ reply_info = "Dyma ymateb i wahoddiad i ddigwyddiad a wnaed gennych chi.";
 "OK" = "Iawn";
 "Comment" = "Sylw";
 "Description" = "Description";
+"Location" = "Location";
diff --git a/UI/MailerUI/Welsh.lproj/Localizable.strings b/UI/MailerUI/Welsh.lproj/Localizable.strings
index 2aff83f06..a5d0d88bb 100644
--- a/UI/MailerUI/Welsh.lproj/Localizable.strings
+++ b/UI/MailerUI/Welsh.lproj/Localizable.strings
@@ -143,6 +143,23 @@
 "This mail is being sent from an unsecure network!" = "Mae'r neges yma yn cael ei hanfon o rwydwaith anniogel!";
 "Address Book" = "Llyfr Cyfeiriadau";
 "Search For" = "Chwilio Am";
+"Contains" = "Contains";
+"Does not contains" = "Does not contains";
+"Advanced search" = "Advanced search";
+"Anytime" = "Anytime";
+"Last 7 days" = "Last 7 days";
+"Last 30 days" = "Last 30 days";
+"Last 6 month" = "Last 6 month";
+"Before" = "Before";
+"After" = "After";
+"Between" = "Between";
+"and" = "and";
+"With attachments" = "With attachments";
+"In favorites" = "In favorites";
+"Unseen only" = "Unseen only";
+"Show more" = "Show more";
+"Reset" = "Reset";
+"Message size" = "Message size";
 
 /* Popup "show" */
 "all"     = "popeth";
@@ -239,6 +256,7 @@
 "Save As..." = "Cadw Fel...";
 "Print Preview" = "Rhagolwg Argraffu";
 "View Message Source" = "Gweld Tarddiad Neges";
+"View raw message" = "View raw message";
 
 /* Message view "more" menu: create an event from message */
 "Convert To Event" = "Trosi yn Ddigwyddiad";
@@ -485,9 +503,6 @@
 /* Hotkey to write a new message */
 "hotkey_compose" = "w";
 
-/* Hotkey to mark selected message(s) as junk */
-"hotkey_junk" = "j";
-
 /* Hotkey to flag a message */
 "hotkey_flag" = "*";
 
diff --git a/UI/PreferencesUI/Welsh.lproj/Localizable.strings b/UI/PreferencesUI/Welsh.lproj/Localizable.strings
index dfc5bfbbf..31a975093 100644
--- a/UI/PreferencesUI/Welsh.lproj/Localizable.strings
+++ b/UI/PreferencesUI/Welsh.lproj/Localizable.strings
@@ -152,6 +152,7 @@
 "Contacts Names" = "Enwau Cysylltiadau";
 "Duplicate name" = "Duplicate name";
 "Calendar categories must have unique names." = "Calendar categories must have unique names.";
+"Disable e-mail notifications on CalDAV" = "Disable e-mail notifications on CalDAV";
 
 /* Default Calendar */
 "Default calendar" = "Calendr diofyn";
diff --git a/UI/Scheduler/Welsh.lproj/Localizable.strings b/UI/Scheduler/Welsh.lproj/Localizable.strings
index a06d297fc..686de8c26 100644
--- a/UI/Scheduler/Welsh.lproj/Localizable.strings
+++ b/UI/Scheduler/Welsh.lproj/Localizable.strings
@@ -377,7 +377,7 @@
 "Show an Alert" = "Dangos Rhybudd";
 "Send an E-mail" = "Anfon E-bost";
 "Email Organizer" = "E-bostio'r Trefnydd";
-"Email Attendees" = "E-bostio'r Mynychwyr";
+"Email Attendees (internal users)" = "Email Attendees (internal users)";
 "zoom_400" = "400%";
 "zoom_200" = "200%";
 "zoom_100" = "100%";