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OSSEC / HIDS Rule 3302

OSSEC / HIDS rule catalog

  • Rule family: OSSEC / HIDS
  • Rule ID: 3302
  • Definition status: Present in current source
  • Alert message / subject: Postfix: Rejected by access list (Requested action not taken).
  • Rule level: 6
  • Definition checked: 2026-10-21

Interpretation and response

This event is recorded as “Postfix: Rejected by access list (Requested action not taken).” Review the originating log and the affected host or service to determine whether the activity was expected.

An OSSEC/HIDS event records or correlates activity. Blocking depends on the originating application and any separately configured Active Response policy; an alert alone does not prove that an attack was blocked.

The current rule explicitly disables Active Response for this event.

Documentation

The following guidance was migrated from the historical wiki and reviewed against the rule definition. Legacy ASL product names and interface instructions refer to the versions documented then. Use the current metadata above and your installed configuration when interpreting thresholds, notification settings and response behavior.

Description

ASL does not cause this event and does not cause any blocks associated with this event. ASL simply reports when your mail server blocks an attempt because your mailserver has been configured to block it. ASL has no control over your mail server.

This rule reports when your systems mail server has rejected a connection request because the mailservers access list has been configured to block it.

ASL does not control or configure this behavior in your mail server, it merely reports when this occurs. Therefore, if your mail server is rejecting mail from one of your users you will need to configure your mail server to access from the user. Please contact your mail server vendor for assistance with configuring your mail server to do this.

Disabling this rule will not allow your users to access your mail serber. It will simply “silence” the alert in ASL, however the mail will still be rejected by your mail server.

Troubleshooting

False Positives

None.

Tuning Guidance

If you wish to block these connections, just enable Active Response in the ASL (historical reference) rule manager for this rule.

Source and revision

Migrated from HIDS_3302, wiki page 677, revision 5732 (20160707). Documentation review: 2026-10-21. An archived wiki status of Active is not a current deployment status.

For assistance, provide the rule ID, installed product and rule version, and a sanitized event to Atomicorp support .