Expires: header not working?

Hello,

I've come across a problem with the 'Expires:' header not working
properly... I've tried installing a web-based email reader called MailMan,
the problem is that users connecting to the mail machine through our squid
proxies can read each other's email, because Squid (2.0PATCH1) is cacheing
the pages.. here is the header info that the web server gives:

office:/var/lib/httpd/htdocs/mail$ telnet localhost 80
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET /mail/ HTTP/1.0
 
HTTP/1.1 200 OK
Date: Wed, 02 Dec 1998 20:24:09 GMT
Server: Apache/1.3.1 (Unix)
Set-cookie: MailManAuth=;path=/mail/; expires=Sun, 03-May-1998 16:00:00 GMT
Set-cookie: MailManCmds=;path=/mail/; expires=Sun, 03-May-1998 16:00:00 GMT
Expires: Sun, 03-May-1998 16:00:00 GMT
Connection: close
Content-Type: text/html

This tells me that the page expires before it's served, no? However the
page still gets cached by Squid... I've tried changing the Expires: header
to 'Now' (instead of the fixed date) to no avail..

Can anyone help me fix this? The only solution I've found is to turn off
caching for the entire site by using no_cache, but there is a lot of
other information on this server that I want to cache...

TIA
Karl Stevens
Received on Wed Dec 02 1998 - 16:39:55 MST