HIDS 3398

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Rule 1
Status Active
Alert Message Postfix event


[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


[edit] Knowledge Base Articles


[edit] Outside References


[edit] Notes

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