IBM AIX 5.2 and earlier distributes Sendmail with a configuration file (sendmail.cf) with the (1) promiscuous_relay, (2) accept_unresolvable_domains, and (3) accept_unqualified_senders features enabled, which allows Sendmail to be used as an open mail relay for sending spam e-mail.

Nessus has detected that this internal SMTP server allows mail relaying.

Nessus has detected that the remote SMTP server is insufficiently protected against mail relaying. This issue allows any spammer to use your mail server to send their mail to the world, thus flooding your network bandwidth and possibly getting your mail server blacklisted.

Nessus has detected that the remote SMTP server allows mail relaying.
This issue allows any spammer to use your mail server to send their mail to the world, thus flooding your network bandwidth and possibly getting your mail server blacklisted.

ID	Name	Product	Family	Severity
118017	MTA Open Mail Relaying Allowed (internal)	Nessus	SMTP problems	high
11852	MTA Open Mail Relaying Allowed (thorough test)	Nessus	SMTP problems	high
10262	MTA Open Mail Relaying Allowed	Nessus	SMTP problems	high

Detections

Analytics

CVE-2003-0285

medium

Tenable Plugins

high

high

high