B4X Requires Chilkat v11.0.0+

Fetch Single Email by UID or Sequence Number

Assuming the UID is known, download a single email by UID from an IMAP mail server. B4X

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 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 = False Then
    Log(imap.LastErrorText)
    Return
End If


'  Login
success = imap.Login("***", "***")
If success = False Then
    Log(imap.LastErrorText)
    Return
End If


'  Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If success = False Then
    Log(imap.LastErrorText)
    Return
End If


Dim email As ChilkatEmail
email.Initialize

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

success = imap.FetchEmail(False, uid, isUid, email)
If success = False Then
    Log(imap.LastErrorText)
    Return
End If


'  Display the From and Subject
Log(email.FromAddress)
Log(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.
Log("---- EMAIL BODY ----")
Log(email.Body)
Log("--------------------")

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

'  Show the total size of the email, including body and attachments:
Log(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 Int = imap.GetMailNumAttach(email)
Log(numAttach)

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

Log("--")

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