Yesterday I'vemigrated Dovecot mail archive between two servers using the procedure below: 1) Createon the new server the same email accounts existing on the old server. 2) Transferthe "tarred" mail folder from the old to the new server. For testingpurposes, on Outlook 2007 I've deleted a .pst cache file, forcing the client todownload all emails again. The switchwas absolutely transparent without any problem. All the emails were availableand Outlook 2007 noticed no changes. Can Iconsider this a correct procedure or should I use some tools like Dsync ?
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sun, 19 Jun 2016, Marco Usai wrote:> Yesterday I'vemigrated Dovecot mail archive between two servers using the procedure below: > 1) Createon the new server the same email accounts existing on the old server. > 2) Transferthe "tarred" mail folder from the old to the new server. > For testingpurposes, on Outlook 2007 I've deleted a .pst cache file, forcing the client todownload all emails again. > > The switchwas absolutely transparent without any problem. All the emails were availableand Outlook 2007 noticed no changes. > Can Iconsider this a correct procedure or should I use some tools like Dsync ?If you do not change the mail storage format (Maildir -> dbox, or something like that), do not change 32bit -> 64bit, big / little endian a.s.o. and if you make sure the old mailbox is not accessed, while you copy the data over, it should work :-) In fact, I use "rsync". - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEVAwUBV2eXs3z1H7kL/d9rAQKUUQf/WebZz4IiJogPyWO0vCvJVomDl12E/1cX fDz0FW7wceJrKIYmLfIJa5S4L2r1bimdfVimiPbs3ORMbBV37TXH8lErbLZMSrEi gjn7FI1Q6hF97Lrc1YSn9UkENp9M7bXpXsDPiuOn++KXZ+fM5QkSzKxV2F9YAoap J/efjEo/cliOiSYWC5R4yZ8bIY45x83kxMhWctH3ZQ/dCGWdiAgGxg0l+bP0AurV 7vEJhfhJxdV2FnaQtnhHHRuOFcIVBSyvDWkx9iQZ5ZiTnE9NDsVYf5gkPy+2dkrf XvtZ+G9HRaBGrCkqGJxWZTRzjgtnBYx6lxz+9zPgRVGpguKFR7Qnkg==2W8A -----END PGP SIGNATURE-----
On 6/20/2016 3:13 AM, Steffen Kaiser <skdovecot at smail.inf.fh-brs.de> wrote:> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Sun, 19 Jun 2016, Marco Usai wrote: > >> Yesterday I'vemigrated Dovecot mail archive between two servers using the procedure below: >> 1) Createon the new server the same email accounts existing on the old server. >> 2) Transferthe "tarred" mail folder from the old to the new server. >> For testingpurposes, on Outlook 2007 I've deleted a .pst cache file, forcing the client todownload all emails again. >> >> The switchwas absolutely transparent without any problem. All the emails were availableand Outlook 2007 noticed no changes. >> Can Iconsider this a correct procedure or should I use some tools like Dsync ?> If you do not change the mail storage format (Maildir -> dbox, or > something like that), do not change 32bit -> 64bit, big / little endian > a.s.o. > > and if you make sure the old mailbox is not accessed, while you copy the > data over, > > it should work :-) > > In fact, I use "rsync".Imapsync is easier. Made migration from dovecot to Office 365, then back to dovecot painless and easy, and can be done while both systems are live.
Yes, infact it's working:
after thecopy I've switched mx record and server address on the email client
so, the oldmailbox is not used.
Mailstorage format was the same on both servers (mbox).
I'vepreferred this approach than the use of Dsync or Imapsync tools.
Il Luned? 20 Giugno 2016 9:14, Steffen Kaiser <skdovecot at
smail.inf.fh-brs.de> ha scritto:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Sun, 19 Jun 2016, Marco Usai wrote:
> Yesterday I'vemigrated Dovecot mail archive between two servers using
the procedure below:
> 1) Createon the new server the same email accounts existing on the old
server.
> 2) Transferthe "tarred" mail folder from the old to the new
server.
> For testingpurposes, on Outlook 2007 I've deleted a .pst cache file,
forcing the client todownload all emails again.
>
> The switchwas absolutely transparent without any problem. All the emails
were availableand Outlook 2007 noticed no changes.
> Can Iconsider this a correct procedure or should I use some tools like
Dsync ?
If you do not change the mail storage format (Maildir -> dbox, or
something like that), do not change 32bit -> 64bit, big / little endian
a.s.o.
and if you make sure the old mailbox is not accessed, while you copy the
data over,
it should work :-)
In fact, I use "rsync".
- --
Steffen Kaiser
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEVAwUBV2eXs3z1H7kL/d9rAQKUUQf/WebZz4IiJogPyWO0vCvJVomDl12E/1cX
fDz0FW7wceJrKIYmLfIJa5S4L2r1bimdfVimiPbs3ORMbBV37TXH8lErbLZMSrEi
gjn7FI1Q6hF97Lrc1YSn9UkENp9M7bXpXsDPiuOn++KXZ+fM5QkSzKxV2F9YAoap
J/efjEo/cliOiSYWC5R4yZ8bIY45x83kxMhWctH3ZQ/dCGWdiAgGxg0l+bP0AurV
7vEJhfhJxdV2FnaQtnhHHRuOFcIVBSyvDWkx9iQZ5ZiTnE9NDsVYf5gkPy+2dkrf
XvtZ+G9HRaBGrCkqGJxWZTRzjgtnBYx6lxz+9zPgRVGpguKFR7Qnkg==2W8A
-----END PGP SIGNATURE-----