The target is running at least one instance of MailEnable's SMTP Connector service. A flaw exists in both the Standard Edition 1.7x and Professional Edition 1.2x/1.5a-e that results in this service crashing if it receives a DNS response with over 100 MX records. A remote attacker can exploit this to perform a DoS attack against the SMTP server on the target. ***** OVS has determined the vulnerability exists on the target ***** simply by looking at the version number of MailEnable ***** installed there.

Upgrade to MailEnable Standard Edition 1.8 / Professional Edition 1.5e or greater.