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.