On Wed, Dec 15, 1999 at 03:35:31PM +0100, Michal Otoupalik wrote:
> I'm working on SSL wrapper for SMTP, POP3, IMAP (based on OpenSSL 0.9.4) and I have
> some problems with Outlook Express.
> Everything works well until I turn on peer certificate verification (client must
>have a certificate)
> on server. I examined server logs and I discovered that Outlook Express did not send
> any client certificate and connection failed. (OE says: Error 0x800CCC1A)
> I have tried Outlook Express 4 and 5 and result was the same.
> Then I verified SSL layer on server by Internet Explorer (HTTPS) and all was ok.
> IE offered dialog box with list of client certificates, sent certificate and SSL
> connection was established. It seems that SSL server and certificates are ok.
> When I use Netscape, it works without problems.
> Does anybody know why Outlook Express do not send client certificates?
Hi,
as far as I could find out during my work on Postfix/TLS (STARTTLS extension
to the postfix SMTA), Outlook Express simply does not present client
certificates.
For the why:
>From digging around in the Knowledge Base I came to the conclusion, that
MS Exchange server does not authenticate by client certificates, so the
Outlook Express client does not support it. That would match the natural
MicroS*t way to see it.
Best regards,
Lutz
PS. I would love to hear that I am wrong and there is a solution...
--
Lutz Jaenicke [EMAIL PROTECTED]
BTU Cottbus http://www.aet.TU-Cottbus.DE/personen/jaenicke/
Lehrstuhl Allgemeine Elektrotechnik Tel. +49 355 69-4129
Universitaetsplatz 3-4, D-03044 Cottbus Fax. +49 355 69-4153
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