B4X

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. B4X

Dim success As Boolean = False

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

Dim imap As ChilkatImap
imap.Initialize("imap")

'  Connect to an IMAP server.
'  Use TLS
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.example.com")
If success <> True Then
    Log(imap.LastErrorText)
    Return
End If


'  Login
success = imap.Login("myLogin", "myPassword")
If success <> True Then
    Log(imap.LastErrorText)
    Return
End If


'  Check the capabilities of the IMAP server.
Dim cap As String = imap.Capability
Log("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 ChilkatEmail
email.Initialize

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


success = imap.AppendMail("Inbox", email)
If success <> True Then
    Log(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.
Log("UID of appended email: " & 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
    Log(imap.LastErrorText)
    Return
End If


Dim uidNext As Int = imap.UidNext

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


Log("The UID of the appended email SHOULD be " & uidNext)

Log("Email uploaded to Inbox!")

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