I have some questions about a possible Cyrus Agregation ( Murder ) implementation in my enviromment. My envirommet; ---------------------------------------------- - Internet Firewall -- 3 Cyrus FrontEnd ( DMZ ) - Internal DMZ Firewall -- 3 Backends + 1 Mupdate. ------------------------------------------------------------------------------------------------------- In this situation, backends have only a NAT IP. I think that "IMAP Referral" is not a option in this case. I find a parameter to imapd.conf: proxyd_disable_mailbox_referrals. Only this parameter is necessary in frontend to complete disable referall ? ---------------------- The worst operation for a firewall is the operation to open a connection. Is possible to force the frontends to keep the connectiom with MUPDATE and Backends ? Like a tcp keepalive. Regards Zinato ---- 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