-> "S" followed by "CANCEL" means that this message
should be deleted from the local message base once
it has been replicated to all network systems.
-T date/Time A 32-bit integer containing the date and time of
- the message in standard UNIX format (the number
- of seconds since January 1, 1970 GMT).
+T date/Time Unix timestamp containing the creation date/time of
+ the message.
U sUbject Optional. Developers may choose whether they wish to
generate or display subject fields.
V enVelope-to The recipient specified in incoming SMTP messages.
W Wefewences Previous message ID's for conversation threading. When
converting from RFC822 we use References: if present, or
In-Reply-To: otherwise.
- (Who in extnotify spool messages which don't need to know
- other message ids)
Y carbon copY Optional, and only in Mail messages.
0 Error This field is typically never found in a message on
disk or in transit. Message scanning modules are
message looks like spam, etc.)
1 suppress index The presence of this field indicates that the message is
disqualified from being added to the full text index.
+2 extnotify Used internally by the serv_extnotify module.
+3 msgnum Used internally to pass the local message number in the
+ database to after-save hooks. Discarded afterwards.
EXAMPLE