Anonymous SMTP Authentication Enabled

info Nessus Plugin ID 54581
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


Anonymous authentication is allowed on the remote SMTP server.


This SMTP service allows anonymous authentication. Any remote user may connect and authenticate without providing a password or unique credentials. This may effectively turn the remote server into an open mail relay.

See Also

Plugin Details

Severity: Info

ID: 54581

File Name: smtp_anonymous.nasl

Version: Revision: 1.2

Type: remote

Published: 5/19/2011

Updated: 6/12/2017

Dependencies: smtp_authentication.nasl