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Article: Understanding COM References in Delphi

IMAP Download All Email One at a Time

Demonstrates how to download every email in an IMAP mailbox one at a time as a MIME string or as an email object. (The MIME contains the full contents of the email including all attachments.)

Download Chilkat IMAP ActiveX

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATIMAPLib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
imap: TChilkatImap;
success: Integer;
bUid: Integer;
mimeStr: String;
i: Integer;
n: Integer;
email: CHILKATMAILLib2_TLB.IChilkatEmail2;

begin
imap := TChilkatImap.Create(Self);

//  Anything unlocks the component and begins a fully-functional 30-day trial.
success := imap.UnlockComponent('Anything for 30-day trial');
if (success <> 1) then
  begin
    ShowMessage(imap.LastErrorText);
    Exit;
  end;

//  Connect to an IMAP server.
success := imap.Connect('mail.chilkatsoft.com');
if (success <> 1) then
  begin
    ShowMessage(imap.LastErrorText);
    Exit;
  end;

//  Login
success := imap.Login('myLogin','myPassword');
if (success <> 1) then
  begin
    ShowMessage(imap.LastErrorText);
    Exit;
  end;

//  Select an IMAP mailbox
success := imap.SelectMailbox('Inbox');
if (success <> 1) then
  begin
    ShowMessage(imap.LastErrorText);
    Exit;
  end;

//  Once the mailbox is selected, the NumMessages property
//  will contain the number of messages in the mailbox.
//  You may loop from 1 to NumMessages to
//  fetch each message by sequence number.

bUid := 0;

n := imap.NumMessages;
for i := 1 to n do
  begin

    //  Download the email by sequence number.
    mimeStr := imap.FetchSingleAsMime(i,bUid);

    //  ... your application may process each MIME string...
  end;

//  An alternative is to download each email in the form of an
//  email object, like this:

for i := 1 to n do
  begin

    //  Download the email by sequence number.
    email := imap.FetchSingle(i,bUid) As CHILKATMAILLib2_TLB.IChilkatEmail2;

    //  ... your application may process the email object...

  end;

//  Disconnect from the IMAP server.
imap.Disconnect();


end;

 

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