Microsoft email+calendar annoys me. For some reason I just couldn't get it working in Thunderbird. I can read email in Thunderbird, but can't send any. I can't get calendars in Thunderbird, even in read-only mode. They basically force me to use Outlook despite how they're using technology that could very easily comply with open standards.
I have to use Microsoft email+calendar at work, so I don't really have any options there. Ideally I'd like to at least use a FOSS client rather than Outlook :/
