Ну что, провел я тест. Вот логи. Все файлы были по 2 894 702b… Всего их было 7… Так что все таки склоняюсь к тому, что у Вас что-то местное, а вот причину сказать не могу
13.05.2005, 11:32:49: FETCH - receiving mail messages
13.05.2005, 11:32:50: FETCH - connected to the Exchange server "exch" as user "vadim"
13.05.2005, 11:32:51: FETCH - processing 28 folder(s)
>13.05.2005, 11:32:54: FETCH - received message from kirill@eltel.net (2894702 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC8@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
>13.05.2005, 11:32:56: FETCH - received message from kirill@eltel.net (2894690 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC7@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
>13.05.2005, 11:32:58: FETCH - received message from kirill@eltel.net (2894702 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC6@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
>13.05.2005, 11:32:59: FETCH - received message from kirill@eltel.net (2894698 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC5@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
>13.05.2005, 11:33:01: FETCH - received message from kirill@eltel.net (2894694 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC4@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
>13.05.2005, 11:33:02: FETCH - received message from kirill@eltel.net (2894694 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC3@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
>13.05.2005, 11:33:04: FETCH - received message from kirill@eltel.net (2894690 bytes), URL: msgidF35AFB4F5E41C419ECFB0D1B7DC0CB942FCC2@exch.main.el tel.net?folder=\\Vadim_main\Inbox\WorkFriends
13.05.2005, 11:33:04: FETCH - connection finished - 7 messages received