Question

Following is my code for the smtp client for sending email

    VAR SMTP : TIdSMTP;
 MSG : TIdmessage;
 begin


  MSG:=TIdmessage.Create(NIL);
  TRY
    WITH MSG.Recipients.Add DO BEGIN
      Name:='me025';
      Address:='[e-mail]'
    END;
    MSG.BccList.Add.Address:='[e-mail]';
    MSG.From.Name:='self025';
    MSG.From.Address:='self025@127.0.1.1';
    MSG.Body.Text:='<Message Body>';
    MSG.Subject:='<Subject of message>';
    SMTP:=TIdSMTP.Create(NIL);
    TRY
      SMTP.Host:='127.0.1.1'; // IP Address of SMTP server
      // 127.0.1.1
      SMTP.Port:=25; // Port address of SMTP service (usually 25)
      SMTP.Connect;
      TRY
        SMTP.Send(MSG)
      FINALLY
        SMTP.Disconnect
      END
    FINALLY
      SMTP.Free
    END
  FINALLY
    MSG.Free
  END;

 end;

which will use a SMTPserver in same pc

the smtp server is a working indy 10 unofficial sample
http://indy.fulgan.com/ZIP/Indy10demo.zip

whenever i connect to the server “Socket error # 11001 Host not found ” error occers

but smtp server is receiving all the parameters correctly and showing correctly on the GUI

Answer 1

Has your PC an address of 127.0.1.1 or are you trying to use localhost (127.0.0.1)? People should get used to DNS names… as soon as IPv6 will become mainstream at least people won’t be able any longer to remember IP numbers easily 🙂