Hi Olaf, > Thats an interesting information. I have always thought that in > Exchange-Outlook world the processing was on the server side and the > messages were sitting on the server. > Or the client side processing is limited to Toltec/Bynari solution? With Exchange-Outlook the Outlook message store receives on the server. When new mail is delivered to the exchange server it does the special processing before injecting it into the mail store. With the IMAP4 server and SMTP of your choice, the mail must be downloaded to be processes before it can be stored in the Outlook message store. Best Regards Joon Radley Radley Network Technologies CC Cell: +27 (0)83 368 8557 Fax: +27 (0)12 998 4346 E-mail: joon@xxxxxxxxxxxxx Web: www.toltec.co.za ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html