https://tools.ietf.org/html/rfc3501#page-49
However, when I try searching with a query that includes a header term, ME seems to simply ignore it. Take this query for example, I get a result set that has messages with and without the "List-Unsubscribe" header defined, however, I should only get messages from "somedomain" where they provide the "List-Unsubscribe" header.HEADER <field-name> <string>
Messages that have a header with the specified field-name (as
defined in [RFC-2822]) and that contains the specified string
in the text of the header (what comes after the colon). If the
string to search is zero-length, this matches all messages that
have a header line with the specified field-name regardless of
the contents.
Code: Select all
'HEADER "List-Unsubscribe" "somedomain.com" FROM "somedomain.com"'
Is this a bug, or known issue?