Command group Flag affected Reversible Execute on client Platform(s)
External commands YES NO NO All


IMAPSetMessageFlags (socket,messageuid,answered,deleted,draft,flagged,seen[,stsproc,responselist]) Returns status


Note: The flag is set according to whether Omnis was able to make a call to this external command.

This Web command is multi-threaded, allowing another thread to execute in the multi-threaded server while it runs. Note that the same socket cannot safely be used concurrently by more than one thread.

IMAPSetMessageFlags adds and removes flags for a message in the currently selected mailbox. Each flag value can be passed as follows:

Value Meaning
kFalse Remove the flag from the message.
kTrue Add the flag to the message.
kUnknown Leave the flag unchanged.

Before using this command, you must select a mailbox using the IMAPSelectMailbox command

Socket is an Omnis Long Integer field containing a socket opened to an IMAP server using IMAPConnect.

Messageuid is an Omnis Long Integer field containing the IMAP Unique Identifier (UID) of the message for which the flags are to be set.

Answered is the flag value (as defined above) for \Answered.

Deleted is the flag value (as defined above) for \Deleted.

Draft is the flag value (as defined above) for \Draft.

Flagged is the flag value (as defined above) for \Flagged.

Seen is the flag value (as defined above) for \Seen.

Stsproc is an optional parameter containing the name of an Omnis method that this command calls with status messages. This command calls the method with no parameters, and the status information in the variable #S1. The status information logs protocol messages exchanged on the connection to the server.

Responselist is an optional parameter into which this command places response lines received from the IMAP server. Before calling this command, define the responselist to have a single Character column. When the command returns successfully, the response list contains the untagged and tagged responses received from the IMAP server as a result of executing this command. These sometimes include unsolicited information, for example, an update on the current number of messages in the selected mailbox. Each line in the response list is a response line received from the server. See RFC 3501 for more details, if you need to handle this sort of information.

This command returns an integer, which is less than zero if an error occurred. Possible error codes are listed in the Web Command Error Codes Appendix.


You use IMAPSetMessageFlags to delete a message, by adding the \Deleted flag to the message. You can then permanently delete all messages in the currently selected mailbox with the \Deleted flag set, by calling IMAPExpungeMessages


; Mark message 142 in the currently selected mailbox as deleted
Calculate iUID as 142
Calculate iAnswered as kUnknown
Calculate iDeleted as kTrue
Calculate iDraft as kUnknown
Calculate iFlagged as kUnknown
Calculate iSeen as kUnknown
IMAPSetMessageFlags (iIMAPSocket,iUID,iAnswered,iDeleted,iDraft,iFlagged,iSeen) Returns lStatus
If lStatus<0
  ; Command failed
End If