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CloseReview for Owl for Exchange by Grant
Rated 5 out of 5 stars
It just works. It's simple to install and configure. I've been using it for 6 months: email and calendar both sync perfectly.
I had been using Hiri for a few years and had repeated problems with it getting broken every month or two and having to reinstall or remove my account and set it up again from scratch.
I have zero problems with Thunderbird and OWL: it's completely stable and has far more capabilities and a better UI than Hiri did.
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