diff --git a/LICENSE-mailsync.md b/LICENSE-mailsync.md
new file mode 100644
index 000000000..8991c19e3
--- /dev/null
+++ b/LICENSE-mailsync.md
@@ -0,0 +1,12 @@
+Mailspring Sync Engine ("Mailsync")
+Copyright 2016-2017 Foundry 376, LLC., all rights reserved.
+
+Redistribution and use of the Mailspring Sync Engine in binary form,
+without modification, is permitted, provided it is used in conjunction
+with the Mailspring desktop application under it's original name.
+("Mailspring")
+
+Use of the Mailspring Sync Engine in other applications, in forks of
+Mailspring, or in new projects requiring email requires written
+permission from Foundry 376, LLC. Please contact ben@foundry376.com
+for licensing information and source code inquiries.
\ No newline at end of file
diff --git a/mailsync b/mailsync
index 8841ba098..a412cc688 160000
--- a/mailsync
+++ b/mailsync
@@ -1 +1 @@
-Subproject commit 8841ba0989bcc6179a88f166a24a0634e22a41c6
+Subproject commit a412cc6884ac9b2bd2421d8b6e10bef7fbe7793e