#language en == SpamAssassin Rule: MISSING_MID == ''Standard description:'' Missing Message-Id: header === Explanation === The message does not contain a Message-Id header. The relevant standards specify that mails should have Message-Id headers. All properly written Mail User Agent (or Mail Submission Agent) software is expected to add a Message-Id header. === Further Info === The default scores for this rule can be found [[http://spamassassin.apache.org/tests.html|in the online list of tests]]. The Message-Id header is detailed in [[http://www.apps.ietf.org/rfc/rfc2822.html#sec-3.6.4|RFC 2822 sec 3.6.4]]. ---- CategoryRule