If you're struggling to manage your mailbox sizes, or just need to keep email for long periods for compliance reasons, you may well have found yourself looking around for an archiving solution of some kind.  There are plenty out there, with many sharing some similarities, however it's the technical approach of the various products that's a good method for distinguishing them. Some of the vendors you'll come across will employ the use of a technology known as 'stubbing'. As MailStore Server doesn't, in this post I'll take a brief look at what it is, and why it's German developers have decided against stubbing and instead chosen an alternative route.