Email Service Guide has been an interesting project for us. We’ve learned a lot, and it been in touch with a lot of interesting people. However, we were never able to reach the level of traction we were expecting (and hence not able to make up for the expenses of having on-staff bloggers).
As a result, we are more or less shutting down the blog and deprecating the service. We may decide to revive it at a later point in time, but at the moment, we do not have enough resources in-house to keep up with producing quality content.
For the latest news about what we are up to, please visit us at WireLoad.net.
Today I first heard about 
Many, if not most, companies are either moving services to the cloud, or at the very least discussing this internally. Moving your email to the cloud might have many benefits. The most significant benefit is probably cutting costs by not having to allocate resources on maintaining these servers.
A few weeks back it was announced that reMail had been 
Atmail 6.1.3 was 
I’m actually surprised nobody has posted anything about this online, but it’s more or less possible to write an IMAP proxy for Facebook using their API. Sure, you could not write a full-fledge IMAP implementation, but you could get it to perform the most basic tasks, like reading messages (and therefore also store them locally).
For those who have been using email since the dawn of time, Pegasus Mail is a well known name. For those of you who started out reading your first email in Outlook, chances are you have no clue what Pegasus Mail is.