Version:           1.8.3 (using KDE KDE 3.5.1KDE 3.4.3)
Installed from:    Gentoo PackagesGentoo Packages
Compiler:          gcc version 3.3.6 (Gentoo 3.3.6, ssp-3.3.6-1.0, pie-8.7.8) Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.6/specs
Configured with: /var/tmp/portage/gcc-3.3.6/work/gcc-3.3.6/configure --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.3.6 --includedir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.6/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3.6 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3.6/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3.6/info --with-gxx-include-dir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.6/include/g++-v3 --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --disable-altivec --enable-nls --without-included-gettext --with-system-zlib --disable-checking --disable-werror --disable-libunwind-exceptions --disable-multilib --disable-libmudflap --disable-libgcj --enable-languages=c,c++,f77 --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
OS:                Linux

Hi,

I am using KMail to access my mail and would like to switch to Secure 
IMAP (Port 993). Due to a problem in my network setup (behind a firewall) I need to 
tunnel all connections from localhost to my mail server. This works fine for SMTP and POP3 but  I am having problems with IMAPS on a non standard port. First of all I set up a tunnel with SSH which is working alright as my local openssl clients shows:

$ openssl s_client -host localhost -port 3993
CONNECTED(00000003)
depth=0 /C=DE/ST=MyTown/L=MyHomeCity/O=mydomain.tld mail 
server/OU=Automatically-generated IMAP SSL 
key/CN=myserver.mydomain.tld/emailAddress=sebastian@mydomain.tld
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=DE/ST=MyTown/L=MyHomeCity/O=mydomain.tld mail 
server/OU=Automatically-generated IMAP SSL 
key/CN=myserver.mydomain.tld/emailAddress=sebastian@mydomain.tld
verify return:1
---
Certificate chain
 0 s:/C=DE/ST=MyTown/L=MyHomeCity/O=mydomain.tld mail 
server/OU=Automatically-generated IMAP SSL 
key/CN=myserver.mydomain.tld/emailAddress=sebastian@mydomain.tld
   i:/C=DE/ST=MyTown/L=MyHomeCity/O=mydomain.tld mail 
server/OU=Automatically-generated IMAP SSL 
key/CN=myserver.mydomain.tld/emailAddress=sebastian@mydomain.tld
---
Server certificate
-----BEGIN CERTIFICATE-----

[ ... ]

-----END CERTIFICATE-----
subject=/C=DE/ST=MyTown/L=MyHomeCity/O=mydomain.tld mail 
server/OU=Automatically-generated IMAP SSL 
key/CN=myserver.mydomain.tld/emailAddress=sebastian@mydomain.tld
issuer=/C=DE/ST=MyTown/L=MyHomeCity/O=mydomain.tld mail 
server/OU=Automatically-generated IMAP SSL 
key/CN=myserver.mydomain.tld/emailAddress=sebastian@mydomain.tld
---
No client certificate CA names sent
---
SSL handshake has read 1017 bytes and written 340 bytes
---
New, TLSv1/SSLv3, Cipher is AES256-SHA
Server public key is 1024 bit
SSL-Session:
    Protocol  : TLSv1
    Cipher    : AES256-SHA
    Session-ID: 
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    Session-ID-ctx:
    Master-Key: 
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    Key-Arg   : None
    Start Time: 1139867383
    Timeout   : 300 (sec)
    Verify return code: 18 (self signed certificate)
---
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE 
THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA AUTH=CRAM-MD5 
AUTH=CRAM-SHA1 AUTH=CRAM-SHA256 IDLE AUTH=PLAIN ACL ACL2=UNION] 
Courier-IMAP ready. Copyright 1998-2005 Double Precision, Inc.  See 
COPYING for distribution information.

So the tunnel actually works, fine. I then tried to use Mozilla 
Thunderbird to access my mails securely and it works just fine
(localhost, port 3993, With "Use secure connection/SSL" enabled.
Now here's my problem: I also tried to use KMail (my favourite
mail client!) to connect to my mailserver but apparently this does
not work when I use the non-standard port 3993! When I check the 
capabilities of the mail server, Kmail basically hangs and
stops connecting to the server. It really weird, the software 
basically still works fine (I can access all other non-IMAP
mail accounts but KMail actually never attempts to connect to the tunnel
Therefore I am unable to get my mails with Kmail if the IMAPS server is 
running on a non-standard port. I am using the KDE packages
provided by my distribution (Gentoo) which is actually KDE 3.4.3
with KMail 1.8.3. I know I should try to use a newer version of KDE
but as this bug did not show up in any error report I decided to
post it anyway.

Any ideas? Thanks.

Best regards,
Sebastian