| VID |
18013 |
| Severity |
40 |
| Port |
25 |
| Protocol |
TCP |
| Class |
SMTP |
| Detailed Description |
The remote SMTP server allows mail relaying. This means that it allows spammers to use your mail server to send their mails to the world, thus wasting your network bandwidth.
The mail relaying allows mail messages to be routed around known mail problems, e-mail hijackers (or spammers) primarily use it to obscure their identity while sending large amounts of junk mail.
* References:
http://www.iss.net/security_center/static/210.php
http://www.sendmail.org/antispam.html |
| Recommendation |
Re-configure your SMTP server so that it can"t be used as a relay any more.
Refer to the appropriate documents for each SMTP server from the following sites:
http://mail-abuse.org/tsi/ar-fix.html
http://www.sendmail.org/antispam.html
http://www.iss.net/security_center/advice/Countermeasures/Anti-spam/default.htm
http://www.cis.ohio-state.edu/cgi-bin/rfc/rfc2505.html |
| Related URL |
CVE-1999-0512 (CVE) |
| Related URL |
(SecurityFocus) |
| Related URL |
(ISS) |
|
