RFC 3463, "Enhanced Mail System Status Codes", January 2003Source of RFC: IETF - NON WORKING GROUP
Errata ID: 4368
Status: Held for Document Update
Publication Format(s) : TEXT
Reported By: John Klensin
Date Reported: 2015-05-15
Held for Document Update by: Barry Leiba
Date Held: 2015-05-15
Section 3.4 says:
X.3.2 [...] Examples of such conditions include an immanent shutdown,
It should say:
X.3.2 [...] Examples of such conditions include an imminent shutdown,
This is an obvious typographic or editorial error. I understand that a correction to the relevant IANA registry is in progress, so this erratum is to preserve consistency and provide a marker in case the RFC is ever revised.
This issue was noticed in the process of reviewing IANA actions that affected this code but not the phrase in question. Alex van den Bogaerdt <firstname.lastname@example.org> found and reported this issue independently and at just about the same time. Chris Newman, Expert Reviewer for the corresponding IANA registry, suggested filing the erratum.