Does the proprietary solution allow IMAP access? If so, I would use imapsync.
http://www.linux-france.org/prj/imapsync/ Jim On 3/29/11 18:26 , Alexandre Chapellon wrote: > Hello, > > I am trying to setup a migration scenario from an proprietary solution > to dovecot IMAP/POP3. > Whereas am only at the strating point, things appear quite complicated > because of the following reasons: > > - The proprietary solution uses special/own/proprietary mailbox format > (wich is more like maildir but is not maildir) > - I don't have direct access to the filesystem where the mails are > stored. The best I could do would be a snapshots of the filesystem > - I have about 1,5TB of mail data. > - Having users to be forced to empty their mailbox before migration or > re-download their whole mailbox after migration would be something hard > for me to present as a correct option. > > Am looking for advices that would avoid me loosing time searching in bad > directions. Or even point me to a miraculous tool thatdoes all magic > while i have a beer :) > > Best regards. >
