Bud- I agree. In my opinion, IMAP is the only way to migrate. I did something similar to import all the user messages from Imail to Merak.
Merak has an interesting feature called Remote Accounts (RA). Once Merak was live and accepting new domain mail, I created and configured RA's to use IMAP, and pointed them at the "current snapshot" of the old Imail installation (now moved to a temp box inside the LAN). Using IMAP, Merak Remote Accounts flawlessly duplicated each IMail users existing sub-mailboxes (including Imail's webmail SENT folders) into Merak and imported 30GB of email. All original Email headers and read/unread info remained intact. I've found the RA's also come in handy if you want to periodically synch with an old POP3 or IMAP account somewhere else (they can be auto-scheduled), or do an entire remote Domain POP. Dev Tuesday, April 19, 2005, 4:39:19 PM, you wrote: BD> I recently converted our IMail server to BD> Kerio. All the mail on the BD> IMail server was stored via IMAP. I found a BD> utility called IMAPCOPY BD> at BD> http://home.arcor.de/armin.diehl/imapcopy/imapcopy.html BD> that worked BD> really well for us. BD> I found a couple glitches with IMAPCopy, but BD> also found work-arounds: BD> In the user's folders on the iMail server, for BD> every sub-folder, there BD> needs to be a corresponding .mbx file. (i.e,, BD> if there is a subfolder BD> called "\imail\users\JohnDoe\MyStuff", with BD> .mbx files in it, there BD> needs to be a file named BD> "\imail\users\JohnDoe\MyStuff.mbx", or that BD> folder won't get copied. IMail apparently will make an "orpahaned" BD> sub-folder. Just make a zero byte .mbx file and this problem is BD> solved BD> IMAPCopy does not sort folder names before BD> copying. This will cause BD> IMAPCopy to try to copy folder in the order BD> IMail lists them. So, it BD> might try to copy the folder BD> "MyStuff\2005\January" before BD> "MyStuff\2005" or even "MyStuff". The way I BD> solved this problem was BD> to run it with the parameter that tells it to only create folders BD> without copying messages (-0, IIRC). I did BD> this over and over until BD> there were no folder creation errors. That left me with an empty BD> "skeleton" of the folder structure for each BD> user on the new server. BD> The next run I actually copied the messages, no problem. BD> Finally, through trial and error I discovered BD> that Kerio required that BD> I use the "subscribe" option on IMAPCopy BD> before it would allow it to BD> write messages. BD> I converted 12Gb of message data (excluding BD> the trash folders) for 75 BD> users, about 110,000 messages, in about 8 BD> hours. The really cool news BD> was the mail could be coming in to the new BD> server while the conversion BD> was going on. BD> YMMV, but this utility saved be a lot of hours. BD> On 4/19/05, Jim Colunio <[EMAIL PROTECTED]> wrote: >> >> >> Greetings, >> I regret that I will be shortly moving >> away from Imail. I've got no >> problems with the product, but our new IT >> director loves Exchange, so that >> will be the way we are going. I'd like to take >> this opportunity to thank the >> MANY MANY contributors of this list for the >> excellent help, tips, insight >> that they've shared, both on and off list, with >> me. There is a wealth of >> knowledge here that I will sorely miss. >> >> I do have one last question that needs to be answered and, >> hopefully, someone knows a graceful way to do >> this. On our move to Exchange, >> we will still have the Imail box running for >> awhile, but we want ALL mail >> immediately forwarded (no storage) to the new Exchange server. Could >> someone, please, walk me through the procedure� especially if they have >> tested this. I appreciate all the help you can >> give. Thanks again, everyone. >> >> Jim >> >> --------------------------------------------------------------------------------------------- >> Jim Colunio >> Network-Systems Administrator >> Elmira College >> One Park Place >> Elmira, NY 14901 >> Tel.: (607) 735-1921 >> ---------------------------------------------------------------------------------------- To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
