Reputation: 60818
Appears for all incoming Yahoo mail, X-YMailISG is an incoming message ID mail can be retrieved by. I'm wondering if this is possible in IMAP or if this field is used for something else entirely?
Upvotes: 0
Views: 1731
Reputation: 10985
From RFC 3501, section 6.4.4, you could use SEARCH
or UID SEARCH
with the HEADER
qualifier to look look for the identifier for that message.
Quoted:
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.
Upvotes: 1