PowerBuilder

Fetch a POP3 Message's Raw MIME by UIDL

Demonstrates the Chilkat MailMan.FetchMimeBd method, which fetches an email from the POP3 server by UIDL and stores the raw MIME source bytes in a BinData. Chilkat clears the BinData before downloading. This example fetches one message's MIME into a BinData.

Background: Sometimes you want the message exactly as it arrived — the raw MIME bytes — rather than a parsed Email object, for example to archive it verbatim as a .eml file, forward it untouched, or hash it. Fetching into a BinData preserves every byte precisely, without any parsing or re-encoding that could alter the original.

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integer li_rc
integer li_Success
oleobject loo_Mailman
oleobject loo_BdMime

li_Success = 0

//  Demonstrates the MailMan.FetchMimeBd method, which fetches an email from the POP3 server
//  by UIDL 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 a specific message by UIDL into a BinData.
loo_BdMime = create oleobject
li_rc = loo_BdMime.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Mailman.FetchMimeBd("0000000123abcdef",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