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| function SendMail(SmtpServer, ToAddress, FromAddress, Subject, Body: string): boolean; var MailSocket: TClientSocket; MailBuffer: array [0..2048] of char; begin Result := False; MailSocket := TClientSocket.Create; MailSocket.Connect(SmtpServer, 25); while MailSocket.Connected do begin MailSocket.ReceiveBuffer(MailBuffer, 2048); if not MailSocket.Connected then Break; if Copy(MailBuffer, 1, 3) <> '220' then Break; MailSocket.SendString('HELO ' + smtpserver + #13#10); MailSocket.ReceiveBuffer(MailBuffer, 2048); if not MailSocket.Connected then Break; if Copy(MailBuffer, 1, 3) <> '250' then Break; MailSocket.SendString('MAIL FROM: <' + FromAddress + '>' + #13#10); MailSocket.ReceiveBuffer(MailBuffer, 2048); if not MailSocket.Connected then Break; if Copy(MailBuffer, 1, 3) <> '250' then Break; MailSocket.SendString('RCPT TO: <' + ToAddress + '>' + #13#10); MailSocket.ReceiveBuffer(MailBuffer, 2048); if not MailSocket.Connected then Break; if Copy(MailBuffer, 1, 3) <> '250' then Break; MailSocket.SendString('DATA' + #13#10); MailSocket.ReceiveBuffer(MailBuffer, 2048); if not MailSocket.Connected then Break; if Copy(MailBuffer, 1, 3) <> '354' then Break; MailSocket.SendString('From: ' + FromAddress + #13#10 + 'To: ' + ToAddress + #13#10 + 'Subject: ' + Subject + #13#10#13#10 + Body + #13#10 + '.' + #13#10); MailSocket.ReceiveBuffer(MailBuffer, 2048); if not MailSocket.Connected then Break; if Copy(MailBuffer, 1, 3) <> '250' then Break; MailSocket.SendString('QUIT' + #13#10); Result := True; end; MailSocket.Disconnect; MailSocket.Free; end;
procedure TForm1.Button1Click(Sender: TObject); begin srv:='smtp.web.de'; recv:=edit3.text; from:=edit2.Text+'@web.de'; sub:=Memo1.lines.Text; msg:='';
if SendMail(srv, recv, from, sub, msg) then messagebox(0,'E-Mail wurde gesendet! OK.','',0) else messagebox(0,'E-Mail konnte nicht gesendet werden','',0);
end; |