Versions:

3.00(Nov 24 2008) IMAP IDLE, increased speed, skins (Symbian S60 3rd ed & UIQ3), message flags, default signature, address auto-complete, IMAP last x days download filter, copy text from message, rule action play audio alert, search in messearch, WM Pocket PC today plugin, IMAP purge option, IMAP uploading drafts, working hours, vibration alert (Symbian)
3.01(Dec 05 2008) Small fixes
3.02(Jan 23 2009) Fix of occasional crash
3.03(Feb 08 2009) Fixed problem with sent messages on POP3 accounts
3.04(Feb 22 2009) Small fixes
SymbianOS 60:

Nokia 3230, 6260, 6290, 6600, 6620, 6630, 6670, 6680, 6681, 6682, 7610, N70, N90, Panasonic X700, X800.
Settings Maibox in your phone.