CVE:CVE-2006-3215
CNNVD:CNNVD-200606-467
SMTP 4.3.20之前版本的Clearswift MAILsweeper 和 Exchange 4.3.20之前版本的MAILsweeper可以使远程攻击者通过发送指定不存在或无法识别的字符集的e-mail，来绕过"文本分析"，有可能绕过SPAM 及其他过滤器。
solution:Upgrade clearswift mailsweeper_for_exchange to a higher version than 4.3.19,and avoid the version (,4.3.19]; Upgrade clearswift mailsweeper_for_smtp to a higher version than 4.3.19,and avoid the version (,4.3.19]