> On Fri, 10 Aug 2007, Oliver St=F6neberg wrote:
> > Hi,
> > 
> > we recently started using the TLS features of the XMail and during a 
> > tcpdump session, someone discovered an issue. After the communication 
> > is done and the communication should be closed the sending XMail will 
> > send a RST, instead of closing the connection properly. The mail is 
> > being send properly, but I have been told this behavior might cause 
> > problems with some firewalls. 
> > We also tried it without TLS and the connection is properly closed.
> > 
> > This happened with the final 1.24 on Linux and Windows between two 
> > XMails.
> > 
> > I checked the code, but didn't see anything TLS specified that might 
> > causing this problem. Any help or idea is appreciated.
> 
> Can you try to replace the:
> 
>     SSL_shutdown(pCtx->pSSL);
> 
> at line 227 of SSLBind.cpp with:
> 
>     if (SSL_shutdown(pCtx->pSSL) =3D=3D 0)
>         SSL_shutdown(pCtx->pSSL);
> 
> and let me know?
> 
> 
> 
> - Davide

I changed the line and the problem still occurs. I also read the 
documentation on that function and debugged that part of the XMail 
code on the sending side and the SSL_shutdown will always return 0. I 
even did a while loop with that argument and it never returned 
something else. Maybe there is something wrong on the side of the 
receiving server. After all this is a communication between two 
XMails.
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