The search is ass
My biggest complaint about the dog is it prevents using your email box as a diary/todo list because the search is slow, misses stuff, and incomprehensibly starts with the oldest emails first when its more likely that the thing you want is more recent.
The other truly sucky thing is the way it hides real email addresses when forwarding messages.
[link|http://www.blackbagops.net|Black Bag Operations Log]
[link|http://www.objectiveclips.com|Artificial Intelligence]
[link|http://www.badpage.info/seaside/html|Scrutinizer]