I've just replaced our ancient (10-year old) mail server running
Sendmail/UW-IMAP on Solaris with Postfix/Dovecot 2.1.10 running on Linux
on new hardware. I opted to go with virtual users and I didn't want to
create system accounts and I might end up hosting another department's
mail as well.
We have a mix of POP3 and IMAP users, roughly 90 total. The POP3 user
mailboxes migrated without a hitch, and the IMAP user mailboxes (in what
looks like mbox format) migrated well for the INBOX (found in
/var/mail/<username> ) but for those few who managed to create local
folders and had mail files in their home directories, those mail files
were ignored. Is there any clean way to manage to migrate those folders
to the new server now? There were no .mailboxlist or .subscription files
anywhere on the old mail server.
When I was planning the migration, I tried a variety of the methods
listed on the UW-IMAP and generic migration pages including dsync,
uw2dovecot.pl, and several others. What appeared to work well at the
time was this, although I still have the mail in users' home directories
to recover/migrate:
/usr/local/bin/doveadm -o imapc_user=$1 -o pop3c_user=$1 -o
imapc_password=$2 -o
pop3c_password=$2 backup -R -u [email protected] imapc:
with this dovecot.conf:
# 2.1.10: /usr/local/etc/dovecot/dovecot.conf
# OS: Linux 3.0.13-0.27-pae i686 SUSE Linux Enterprise Server 11 (i586) ext3
auth_mechanisms = plain login
disable_plaintext_auth = no
imapc_features = rfc822.size
imapc_host = p1.caps.fsu.edu
imapc_list_prefix = INBOX
listen = *
mail_location = maildir:/var/vmail/%d/%n/Maildir
namespace {
hidden = yes
list = no
location = pop3c:
prefix = POP3-MIGRATION-NS/
}
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix =
separator = .
}
passdb {
args = /usr/local/etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
plugin {
pop3_migration_mailbox = POP3-MIGRATION-NS/INBOX
}
pop3_uidl_format = %08Xv%08Xu
pop3c_host = p1.caps.fsu.edu
service auth {
unix_listener /var/run/dovecot/auth-master {
mode = 0600
user = vmail
}
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
}
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
args = uid=vmail gid=vmail home=/var/vmail/%d/%n allow_all_users=yes
driver = static
}
protocol lda {
auth_socket_path = /var/run/dovecot/auth-master
log_path =
mail_plugins =
postmaster_address = [email protected]
}
protocol doveadm {
mail_plugins = " pop3_migration"
}
--
Michael Sloan
Systems Administrator
FSU Center for Advanced Power Systems
[email protected]
