The remote host is vulnerable to a Denial of Service (DoS) attack.
The remote host is running Eudora Internet Mail Server (EIMS), an SMTP server for Mac OS. The installed version of EIMS is vulnerable to a remote Denial of Service (DoS). An attacker exploiting this flaw would be able to cause the remote mail server to crash, impacting the availability of the service to valid users.
Upgrade to version 3.2.8 or higher.