I have IspConfig installed, and it work fine, but, my users use microsoft outlook 2007 as mail client, the problem is that they recive a mail with xls attach, it apper how format not reconocible, it pass with .doc too. they can't open exel and word documents. some Body can help me. Thanks.
Please disable Mailscan in ISPConfig. BTW, your users can simply rename the extension back to .doc or .xls, and they can open the files.