Andrei Alexandrescu wrote:
OE (at least as of the last time I used it) is much worse than TB, no question about that. One simple matter - you can't archive messages without using the mouse. As bad as Thunderbird is, it is way more productive than OE.
What drove me away from OE was the inability to backup/restore its database. (OE tries to hide the database in hidden directories with long-strings-o-garbage path names.)
Even if you backed up / restored those hidden files, OE still was screwed up because it also stored critical information in the registration.
Further blows against OE were storing its database in a secret format. No way am I going to have business critical data stored in a secret format. Thunderbird's database is a text file, so even if TB vanishes in a puff of smoke I can still extract my data.