VB.NET

Fetch Single Email by UID or Sequence Number

Assuming the UID is known, download a single email by UID from an IMAP mail server. VB.NET

Dim success As Boolean = False

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim imap As New Chilkat.Imap

' Connect to an IMAP server.
' Use TLS
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.example.com")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Login
success = imap.Login("***","***")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


Dim email As New Chilkat.Email

Dim uid As Integer = 2014
Dim isUid As Boolean = True

success = imap.FetchEmail(False,uid,isUid,email)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Display the From and Subject
Debug.WriteLine(email.FromAddress)
Debug.WriteLine(email.Subject)

' Display the Body property, which is the default body.
' If an email has an HTML body, the Body property contains
' the HTML source.  Otherwise it contains the plain-text
' body.
Debug.WriteLine("---- EMAIL BODY ----")
Debug.WriteLine(email.Body)
Debug.WriteLine("--------------------")

' Display the recipients:
Dim j As Integer
For j = 0 To email.NumTo - 1
    Debug.WriteLine(email.GetToName(j) & ", " & email.GetToAddr(j))
Next
For j = 0 To email.NumCC - 1
    Debug.WriteLine(email.GetCcName(j) & ", " & email.GetCcAddr(j))
Next

' Show the total size of the email, including body and attachments:
Debug.WriteLine(email.Size)

' When a full email is downloaded, we would use the
' email.NumAttachments property in conjunction with the
' email.GetMailAttach* methods.
' However, when an email object contains only the header,
' we need to access the attachment info differently:
Dim numAttach As Integer = imap.GetMailNumAttach(email)
Debug.WriteLine(numAttach)

For j = 0 To numAttach - 1
    Debug.WriteLine(imap.GetMailAttachFilename(email,j))
    Dim attachSize As Integer = imap.GetMailAttachSize(email,j)
    Debug.WriteLine("    size = " & attachSize & " bytes")
Next

Debug.WriteLine("--")

' Disconnect from the IMAP server.
success = imap.Disconnect()