public Task<EnvelopeCollection> DownloadEnvelopesExAsync(
	long[] messageIndices,
	bool indicesAreUids,
	EnvelopeParts[] parts,
	int[] bodyPreviewSizes,
	string[][] extraHeaders,
	string[][] extraItems
)

Public Function DownloadEnvelopesExAsync ( 
	messageIndices As Long(),
	indicesAreUids As Boolean,
	parts As EnvelopeParts(),
	bodyPreviewSizes As Integer(),
	extraHeaders As String()(),
	extraItems As String()()
) As Task(Of EnvelopeCollection)

Parameters

messageIndices

Type: SystemInt64
The array of UIDs or message numbers of the messages to be fetched.

indicesAreUids

Type: SystemBoolean
If true, messageIndices holds UIDs; otherwise, ordinal message numbers.

parts

Type: MailBee.ImapMailEnvelopeParts
For every message to be fetched, denotes its EnvelopeParts to be requested. If a null reference (Nothing in Visual Basic), MailBee will use Uid for all messages.

bodyPreviewSizes

Type: SystemInt32
For every message to be fetched, denotes how many bytes of the raw body part to download in addition to the raw header part. If a null reference, MailBee will use 0 for all messages.

extraHeaders

Type: SystemString
For every message to be fetched, denotes its extra MIME headers to be requested. If a null reference MailBee will not request any additional headers for any messages.

extraItems

Type: SystemString
For every message to be fetched, denotes its extra items to be requested. If a null reference MailBee will not request any additional items for any messages.

Return Value

Reference