What are some alternatives?
When comparing SiteStacks and imapsync, you can also consider the following products
Founderkit - Unbiased reviews of startup tools from experienced founders
OfflineIMAP - OfflineImap synchronizes email between an IMAP server and a MailDir or between two IMAP servers.
Startup with Google - Tools to help with your new startup
iSync - iSync is a software application published by Apple Inc.
Siftery - Share products your company uses and get personalized recommendations
MailStore - MailStore Home - A 100% free single-private-user desktop solution