Outlook

I’d say I really dislike this feature, it always prevent me from being able to receive attachments and does not actually block virii since I have some carefully designed security mechanisms installed on my computer.

Of course someone may say “Outlook sucks, don’t use it!” but I won’t say that. Outlook is a great product that is very safe if you have configured it *CORRECTLY*. The feature of the attachment blocking, while may be useful for not experienced users, will harm users that is experienced and is highly security-aware when communicating with non-experienced folks.