SMTP: Response Relay Access Denied
This signature detects SMTP server responses that are generated when an unsuccessful attempt is made by a known spammer to relay e-mail through your SMTP port. If the SMTP server is configured to refuse connections from spamming Web sites, attackers receive a "550 Access Denied" error message.
Extended Description
A "Relaying Denied" SMTP response message detected in untrusted network could indicate a malicious party is attempting to abuse the mail server to transmit unsolicited messages.
References
CVE: CVE-1999-0512
Short Name
SMTP:RESPONSE:RLY-ACC-DENIED
Severity
Warning
Recommended
False
Recommended Action
None
Category
SMTP
Keywords
Access CVE-1999-0512 Denied Relay Response
Release Date
04/22/2003
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown
CVSS Score
10.0