public Task<MailMessageCollection> DownloadMessageHeadersAsync(
	string messageIndexSet,
	bool indexIsUid
)

Public Function DownloadMessageHeadersAsync ( 
	messageIndexSet As String,
	indexIsUid As Boolean
) As Task(Of MailMessageCollection)

Parameters

messageIndexSet

Type: SystemString
A message sequence string containing ordinal message numbers or UIDs. Can be composed manually or using ToString.

indexIsUid

Type: SystemBoolean
If true, messageIndexSet is treated as a sequence of UIDs; otherwise, as a sequence of ordinal message numbers.

Return Value

Reference