[PERDITION-USERS] How to make Perdition Round Robin 2 mail servers.

Hey all, I am in the process of migrating from one mail server to the other, and have discovered that we are running perdition on the firewall server to proxy the incoming requests, which is nice because my migration plan has just got a little easier. The issue that I am having is that I cannot find much helpful documentation or code snippets anywhere that helps me achieve a round robin approach to adding another server, or to confirm the configuration can handle IMAP and IMAPS servers in the round robin setup. What I would like perdition to do is try the original mail server, mail.x.com.au on imap port 143 (running gordano mail system on centos), if it fails then try exchange.x.com.au imaps port 993 (Exchange 2010SP1 running on Windows 2008R2SP1 server) The perdition config is currently as follows; </etc/perdition/perdition.conf> #debug listen_port 993 map_library "" protocol IMAP4S outgoing_port 143 outgoing_server mail.x.com.au ssl_mode ssl_listen ssl_key_file /etc/perdition/perdition.key.pem </conf> If anyone can shed some light, that would be greatly appreciated -- Regards, Brenton Dobell Network Administrator Climate Technologies P/L Tel: +61883075124 Mob: 0488 261 085 The contents of this e-mail (including any attachments) are strictly confidential and may be commercially sensitive. If you are not, or believe you may not be, the intended recipient, please advise the sender immediately by return email, delete this e-mail, and destroy any copies. In these circumstances, any use or dissemination of this e-mail, or any other dealing based on this e-mail, is strictly prohibited and may be a breach of Australian law. No warranty is given by us that the integrity or security of this e-mail (including any attachments) has been maintained through transmission nor that it is free of virus or any other defect or error. Formatting may have altered in transmission. It is the recipient's responsibility to virus scan and otherwise test the information hereby provided before loading onto any computer system.