(Xojo Plugin) Upload (Append) Email to an IMAP Mailbox and get the UID of the Appended Email

Upload / append an email to an IMAP mailbox and get the UID of the appended email.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// This example assumes 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
Dim success As Boolean
success = imap.Connect("imap.someMailServer.com")
If (success <> True) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

// Login
success = imap.Login("myLogin","myPassword")
If (success <> True) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

// Check the capabilities of the IMAP server.
Dim cap As String
cap = imap.Capability()
System.DebugLog("IMAP capabilities: " + cap)

// If the capabilities string contains the substring "UIDPLUS", then 
// the UID of the appended email will be available in the AppendUid property (see below).

// For example, the GMail IMAP server has these capabilities (at this current time)
// * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN 
// X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT 
// APPENDLIMIT=35882577 LIST-EXTENDED LIST-STATUS

Dim email As New Chilkat.Email

// Load the email from a .eml file.
success = email.LoadEml("myEmail.eml")
If (success <> True) Then
    System.DebugLog(email.LastErrorText)
    Return
End If

success = imap.AppendMail("Inbox",email)
If (success <> True) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

// If the IMAP server supports the UIDPLUS extension, then the 
// imap.AppendUid will contain the UID of the appended email.
// Otherwise AppendUid will be 0.
System.DebugLog("UID of appended email: " + Str(imap.AppendUid))

// If the IMAP server does NOT have UIDPLUS, then a program can 
// first select the mailbox, get the value of the UidNext property,
// and then append.  The appended email SHOULD have a UID equal to 
// the UidNext that was obtained just prior to appending (assuming no other
// program is simultaneously appending an email to the same mailbox).

// Note: It is not required to select a mailbox to append.  The select is only
// done for the purpose of obtaining the UIDNEXT value.
success = imap.SelectMailbox("Inbox")
If (success <> True) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

Dim uidNext As Int32
uidNext = imap.UidNext

success = imap.AppendMail("Inbox",email)
If (success <> True) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

System.DebugLog("The UID of the appended email SHOULD be " + Str(uidNext))

System.DebugLog("Email uploaded to Inbox!")

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