Synapse mail

[ginoo]

When sending emails from Synapse to both external (libero, gmail, etc.) and internal mail servers, sometimes you get this error:

Code: Pascal  [Select][+][-]

1. Login FAIL with error: "" 0
2.  

The program runs on Linux. Can anyone explain it?
Thanks.

[rvk]

You'll need to provide the (sample) code with which you login or send the mail.

Otherwise... consult the error logs of the server to see if there is more information.

[ginoo]

The problem is that it works 90%, sometimes it gives the problem.

Code: Pascal  [Select][+][-]

1. SMTP := TSMTPSend.Create;
2. SMTP.FullSSL := True;
3. ....
4.      SMTP.Username := Username;
5.      SMTP.Password := Password;
6.  
7. ..
8.     if SMTP.Login then
9.      begin
10.        if SMTP.AuthDone then
11.        begin
12.          if SMTP.MailFrom(GetEmailAddr(Mime.Header.From), Length(Mime.Lines.Text)) then
13.          begin
14.                        SMTP.MailData(Mime.Lines);
15.  
16.    ....  
17.  
18.   smtp.Free;
19.  
20.  

It's the classic mail synapse code found in the wiki.

[rvk]

The problem is that it works 90%, sometimes it gives the problem.

In that case you might want to log the exact full log of the interaction with the server.
(You could log SMTP.FullResult at several places for this)

It should provide a better message about the reason why login failed.

If you also have access to the log files of the internal mail server, you can look in there too.

I don't see where you provide that error message to the user. But the chances are that the error is 'gone' from the ErrorString by then. That's why you need to log it every step of the way to catch it at the correct moment.