# msgid

Carries the MSGID header field defined in RFC 5424 Section 6.2.7.

This property belongs to the Message Properties group.

Name:

  msgid

Category:

  Message Properties

Type:

  string

## Description

Carries the `MSGID` header field defined in RFC 5424 Section 6.2.7. The value identifies the semantic type of the event (for example an SMTP transaction label) and RFC 5424 allows the NILVALUE (`-`) when the sender cannot provide one. When rsyslog processes messages that lacked a syslog header at ingestion, the property contains the configured or inferred MSGID value rather than an on-the-wire header.

## Usage

    template(name="example" type="list") {
        property(name="msgid")
    }

## See also

See rsyslog Properties for the category overview.

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© 2008–2025 Rainer Gerhards and others. Licensed under the Apache License 2.0.