Delphi - Indy idMessage和idSMTP实现邮件的发送
编程学习 2021-07-05 13:20www.dzhlxh.cn编程入门
这篇文章主要介绍了Delphi - Indy idMessage和idSMTP实现邮件的发送,本文通过实例代码给大家介绍的非常详细，具有一定的参考借鉴价值，需要的朋友可以参考下
idMessage / idSMTP
首先对idMessage类的各种属性进行赋值（邮件的基本信息，如收件人、邮件主题、邮件正文等），其次通过idSMTP连接邮箱服务器，最后通过idSMTP的Send方法将idMessage发送出去。
界面布局如下：
代码如下：
unit uMain;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, RzPanel, RzShellDialogs, IdMessage, IdBaseComponent,
IdComponent, IdTCPConnection, IdTCPClient, IdMessageClient, IdSMTP,
RzButton, StdCtrls, RzEdit, RzBtnEdt, Mask, RzLabel;
type
TMainFrm = class(TForm)
gbMsgSet: TRzGroupBox;
gbSrvSet: TRzGroupBox;
lbSubject: TRzLabel;
lbRsd: TRzLabel;
lbCc: TRzLabel;
lbBCc: TRzLabel;
lbAth: TRzLabel;
lbBdy: TRzLabel;
lbUserName: TRzLabel;
lbHost: TRzLabel;
lbPsd: TRzLabel;
edtSub: TRzEdit;
edtRsd: TRzEdit;
edtCc: TRzEdit;
edtBCc: TRzEdit;
beAth: TRzButtonEdit;
mmBdy: TRzMemo;
btnSendMail: TRzBitBtn;
edtUN: TRzEdit;
edtHst: TRzEdit;
edtPsd: TRzEdit;
IdSMTP: TIdSMTP;
IdMessage: TIdMessage;
odMain: TRzOpenDialog;
procedure beAthButtonClick(Sender: TObject);
procedure btnSendMailClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
MainFrm: TMainFrm;
implementation
{$R *.dfm}
procedure TMainFrm.beAthButtonClick(Sender: TObject);
begin
with odMain do
begin
Execute;
if FileName <> '' then
begin
beAth.Text := FileName;
end;
end;
end;
procedure TMainFrm.btnSendMailClick(Sender: TObject);
begin
try
if (Trim(edtCc.Text) = '') and (Trim(edtRsd.Text) = '') and (Trim(edtBCc.Text) = '') then
begin
MessageDlg('You should input Rsd, please check,thanks!', mtInformation, [mbOK], 0);
edtRsd.SetFocus;
Exit;
end;
with IdMessage do
begin
Clear;
Subject := edtSub.Text;
From.Text := edtUN.Text;
Recipients.EMailAddresses := edtRsd.Text;
CCList.EMailAddresses := edtCC.Text;
BccList.EMailAddresses := edtBCc.Text;
Priority := TIdMessagePriority(4);
if Trim(beAth.Text) <> '' then
begin
TIdAttachment.Create(MessageParts, Trim(beAth.Text));
end;
Body.Assign(mmBdy.Lines);
end;
except
on E: Exception do
begin
MessageDlg('Msg Set Failed with Err information [' + E.Message + ']', mtWarning, [mbOK], 0);
Exit;
end;
end;
try
if (Trim(edtUN.Text) = '') or (Trim(edtHst.Text) = '') or (Trim(edtPsd.Text) = '') then
begin
MessageDlg('You should input UN, please check,thanks!', mtInformation, [mbOK], 0);
edtUN.SetFocus;
Exit;
end;
with IdSMTP do
begin
if Connected then Disconnect;
AuthenticationType := atLogin;
Port := 25;
UserName := edtUN.Text;
Password := edtPsd.Text;
Host := edtHst.Text;
Connect;
end;
except
on E: Exception do
begin
MessageDlg('Srv Set Failed with Err information [' + E.Message + ']', mtWarning, [mbOK], 0);
Exit;
end;
end;
try
IdSMTP.Send(IdMessage);
IdSMTP.Disconnect;
MessageDlg('OK!', mtInformation, [mbOK], 0);
except
on E: Exception do
begin
MessageDlg('Send Failed with Err information [' + E.Message + ']', mtWarning, [mbOK], 0);
Exit;
end;
end;
end;
end.
总结
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