PowerBuilder

Fetch a POP3 Message's Raw MIME by Message Number

Demonstrates the Chilkat MailMan.FetchMimeByMsgnumBd method, which retrieves an email by POP3 message number and stores the raw MIME source bytes in a BinData. Chilkat clears the BinData before downloading. This example fetches message number 1's MIME into a BinData.

Background: This is the message-number variant of FetchMimeBd. It grabs the untouched MIME bytes of a message identified by its 1-based session position — handy when iterating a mailbox by number and archiving or forwarding each message's exact source. Keep in mind message numbers are only valid within the current session, so for stable identification across sessions prefer the UIDL-based FetchMimeBd.

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integer li_rc
integer li_Success
oleobject loo_Mailman
oleobject loo_BdMime

li_Success = 0

//  Demonstrates the MailMan.FetchMimeByMsgnumBd method, which retrieves an email by POP3
//  message number and stores the raw MIME source bytes in a BinData.  Chilkat clears the
//  BinData before downloading.

loo_Mailman = create oleobject
li_rc = loo_Mailman.ConnectToNewObject("Chilkat.MailMan")
if li_rc < 0 then
    destroy loo_Mailman
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Configure the POP3 server connection.
loo_Mailman.MailHost = "pop.example.com"
loo_Mailman.MailPort = 995
loo_Mailman.PopSsl = 1
loo_Mailman.PopUsername = "user@example.com"
loo_Mailman.PopPassword = "myPassword"

//  Fetch the raw MIME of message number 1 into a BinData.
loo_BdMime = create oleobject
li_rc = loo_BdMime.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Mailman.FetchMimeByMsgnumBd(1,loo_BdMime)
if li_Success = 0 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Mailman
    destroy loo_BdMime
    return
end if

Write-Debug "MIME size (bytes) = " + string(loo_BdMime.NumBytes)

//  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
//  connects and authenticates -- using the property settings above -- whenever a server
//  operation requires it.  Calling the explicit connect/authenticate methods can still be
//  helpful to determine whether a failure occurs while connecting or while authenticating.


destroy loo_Mailman
destroy loo_BdMime