IMailFolderOpen(FolderAccess, UInt32, UInt64, IListUniqueId, CancellationToken) Method

FolderAccess Open(
	FolderAccess access,
	uint uidValidity,
	ulong highestModSeq,
	IList<UniqueId> uids,
	CancellationToken cancellationToken = default
)

Parameters

access  FolderAccess

The requested folder access.

uidValidity  UInt32

The last known UidValidity value.

highestModSeq  UInt64

The last known HighestModSeq value.

uids  IListUniqueId

The last known list of unique message identifiers.

cancellationToken  CancellationToken  (Optional)

The cancellation token.

Return Value

This variant of the Open(FolderAccess, CancellationToken) method is meant for quick resynchronization of the folder. Before calling this method, the Enable(ImapFeatures, CancellationToken) method MUST be called.

You should also make sure to add listeners to the MessagesVanished and MessageFlagsChanged events to get notifications of changes since the last time the folder was opened.

Reference