Some one pointed out that this an off-topic problem. I did some research and got some feedback from this list and will probably build an example of a redundant system, and this will be based on a clustered multi site file system.
However, I see another possible solution where courier IMAP server may have a transaction log implemented and then one or more mailservers may synchronize based on this log. For example, when some one logs out from the IMAP server, the server may syncronize with the neighbours. Or by setting synchronize_level=high one may establish a connection between all neighbours as soon as you got a login, and then synchronize instantly. Maybe this is not within the scope of the courier application, but still people may have to solve the problem and as far as I understand there are no good solutions around ? /Lars ----- Original Message ----- From: "Systems Administrator" <[EMAIL PROTECTED]> To: "Lars Holmstr�m" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Monday, July 14, 2003 2:40 AM Subject: Re: [courier-users] Disaster tolerant IMAP and SMTP ? On Sat, 12 Jul 2003, Lars Holmstr�m wrote: > I consider building a disaster tolerant mailsystem for in and outgoing mail. > > I already have two ISPs and MX records that direct incoming mailtraffic properly. > > The problem seems to be the IMAP. > > Does any one have a suggestion for how to do this ? > > /Lars > Ps. Disaster tolerant in my view is when I can afford to loose one computerroom completely and the service from a users perspective is still available. Ds. I've looked all around, but seen nothing that seems to be a complete solution. I've documented what I've found at: http://www.defendmail.sunet.com.au/Projects/RedundantMail/ I've also got a mailing connected with this page, and have been hoping to get some people together to discuss it, but currently I think its just me on the mailing list. :) -- Tim Nelson Systems Administrator Sunet Internet Tel: +61 3 5241 1155 Fax: +61 3 5241 6187 Web: http://www.sunet.com.au/ Email: [EMAIL PROTECTED] ------------------------------------------------------- This SF.Net email sponsored by: Parasoft Error proof Web apps, automate testing & more. Download & eval WebKing and get a free book. www.parasoft.com/bulletproofapps1 _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
