Hi Kanak, On Fri, 29 Apr 2005 11:23:37 +0530 UTC (4/29/2005, 12:53 AM -0600 UTC my time), NEWS wrote: N> I have a mailserver on windows running Mdaemon as the mail server. Users N> access their mails thru imap & not pop, hence the migration is a issue, as N> the mails reside on the server only. yes, but should not be too difficult. N> We have deployed a new mail server running SLES 9 with postfix as mail N> server & Cyrus imap.We need to find out a soln. where we can migrate the N> mails from mdaemon to Linux directly. There are around 1000 users There are a few ways to approach this. I am assuming the new SLES 9 is on the same network.. At some point, you can direct or NAT your firewall to accept connections connections from SMTP and IMAP NAT-ing them to the new server internal static IP address. All new mail will be sent to the new Postfix/Cyrus servers and IMAP will proceed normally there. You can also do this will a different higher MX record for your domain, but for a LAN setup at the same location, same outside static IP address, NAT-ing to the new servers would probably be easier. Now the problem is the migration of existing email from MDaemon to the new server... In MDaemon, you can go to setup/ primary domain / delivery tab and set direct deliver and enter the new internal IP address, to point to the new internal static IP address of the postfix server. Then what you have to do is re-queue the email (using the local queue) to reinject the email on this server from the existing accounts to the new SLES server. In essence, what you will be doing is putting the existing email back into the local queue for delivery. Since you have set up MDaemon to send the reinjected mail to the new server only, it will do so (once the accounts are set up on the new server). The best way to do this, is to write a windows script to handle this automatically (put email in the local queue), but I do not know how to run windows scripts, so I can't help you there. Another method, is to have both servers running, where you can log on to both, and have you, your staff, or your clients, drag and drop the IMAP mailboxes and/or email from the old server to the new. This would be very time consuming in your situation, but it will work. Another method, is to rsync the IMAP email from the old server to the new, but I do not know if this would work with Cyrus, as it does not use the same mailbox format as MDaemon does. MDaemon uses maildir style format, each email is individually stored, and not on a mail spool. I don't know if Cyrus uses this method. Some investigation is in order. Also, I do not know if this would work if your MDaemon server is on NTFS windows format. I have never tried using Linux rsync-ing from NTFS. HTH with some concepts. Any way you cut it, it is a major undertaking. :) -- Gary