HIDS 3398
| Rule 1 | |
|---|---|
| Status | Active |
| Alert Message | Postfix event |
Contents |
[edit] Description
Postfix is indicating that an invalid (aka "illegal") email address is being used in the From line.
[edit] What you should do
This could indicate a poorly configured spam attempt, or a misconfigured application. Generally it manifests if the From line field is incomplete, like "user@" or "@domain" instead of the valid "user@domain". Investigate the details of the log on the email address, and the sending source to establish if this is an internal misconfigured application. If it is not, then this is a spam attempt and can be ignored.
[edit] Troubleshooting
[edit] False Positives
There are no false positives with this rule.
[edit] Tuning Guidance
There is no guidance for tuning this rule, this is a generic error and the rule should not be disabled.
[edit] Additional Information
[edit] Support
If you are unsure about how to respond to this alert, please contact Atomicorp support. We're here to help you!
[edit] Similar Rules
None.
[edit] Knowledge Base Articles
None.
[edit] Outside References
None.
