Hi,
my users were recently moved from a uw-imap on HPUX to dovecot on EL5. Their sent items and folders went from a ~/Sent mbox file (when using SquirrelMail and Apple Mail both) to ~/mail/Sent for SquirrelMail and ~/mail/Sent Messages for other imap clients. I notice I can cat the files together and the only artifact is I end up with multiple "This message is part of the system do not delete" visible to the user's mail client. Is there any advice anyone can give me regarding this or other solution?
Thank you!
-Eugene
Regards, Eugene Vilensky evilensky@gmail.com
On Mon, Aug 31, 2009, Eugene Vilensky wrote:
Hi,
my users were recently moved from a uw-imap on HPUX to dovecot on EL5. Their sent items and folders went from a ~/Sent mbox file (when using SquirrelMail and Apple Mail both) to ~/mail/Sent for SquirrelMail and ~/mail/Sent Messages for other imap clients. I notice I can cat the files together and the only artifact is I end up with multiple "This message is part of the system do not delete" visible to the user's mail client. Is there any advice anyone can give me regarding this or other solution?
When I wrote a script to extract messages from UW-Imap mbox files (or standard BSD mail folders where UW-imap was used), moving them to Maildir storage, it was easy to just look at the Subject line of each message, ignoring those with the don't remove this.
FWIW, we use courier-imap, not dovecot, and I know nothing about dovcot beyond that it's imap and how to spell it.
Bill
On Mon, Aug 31, 2009, Eugene Vilensky wrote:
Hi,
my users were recently moved from a uw-imap on HPUX to dovecot on EL5. Their sent items and folders went from a ~/Sent mbox file (when using SquirrelMail and Apple Mail both) to ~/mail/Sent for SquirrelMail and ~/mail/Sent Messages for other imap clients. I notice I can cat the files together and the only artifact is I end up with multiple "This message is part of the system do not delete" visible to the user's mail client. Is there any advice anyone can give me regarding this or other solution?
When I wrote a script to extract messages from UW-Imap mbox files (or standard BSD mail folders where UW-imap was used), moving them to Maildir storage, it was easy to just look at the Subject line of each message, ignoring those with the don't remove this.
double plus from my side to use Maildir with dovecot instead of mbox file storage.
There are several scripts and solution for migration. It is easy and once dovecot can use its indexed Maildir, you will see a huge improvement in speed accessing the mailboxes. Especially if mailboxes are not just pretty small.
FWIW, we use courier-imap, not dovecot, and I know nothing about dovcot beyond that it's imap and how to spell it.
http://wiki.dovecot.org/MailLocation/Maildir http://wiki.dovecot.org/MailboxFormat/Maildir
Bill
Alexander
On Mon, Aug 31, 2009, Alexander Dalloz wrote:
On Mon, Aug 31, 2009, Eugene Vilensky wrote:
Hi,
my users were recently moved from a uw-imap on HPUX to dovecot on EL5. Their sent items and folders went from a ~/Sent mbox file (when using SquirrelMail and Apple Mail both) to ~/mail/Sent for SquirrelMail and ~/mail/Sent Messages for other imap clients. I notice I can cat the files together and the only artifact is I end up with multiple "This message is part of the system do not delete" visible to the user's mail client. Is there any advice anyone can give me regarding this or other solution?
When I wrote a script to extract messages from UW-Imap mbox files (or standard BSD mail folders where UW-imap was used), moving them to Maildir storage, it was easy to just look at the Subject line of each message, ignoring those with the don't remove this.
double plus from my side to use Maildir with dovecot instead of mbox file storage.
There are several scripts and solution for migration. It is easy and once dovecot can use its indexed Maildir, you will see a huge improvement in speed accessing the mailboxes. Especially if mailboxes are not just pretty small.
One of the main reasons we have been using courier-imap for the better part of a decade is that we have several ISP clients where there are 10s of thousands of customers pretty constantly checking their e-mail with POP or IMAP. The courier authentication works much like apache with pre-spawned daemon processes that have proven very effective.
Personally our system does server-side e-mail routing into different IMAP folders based on various headers, and I have 11 folders that I monitor, many of these with several thousand messages (yes I save messages for quick retrieval).
The access speed seems to depend more on the IMAP client than on the server. The current version of squirrelmail surprised me with its speed while horde/imp is pretty sluggish. Apple's Mail.app is quite a bit slower than Thunderbird on the same folders.
FWIW, we use courier-imap, not dovecot, and I know nothing about dovcot beyond that it's imap and how to spell it.
http://wiki.dovecot.org/MailLocation/Maildir http://wiki.dovecot.org/MailboxFormat/Maildir
I'll take a look at these, but will probably stay with what's working for us -- if it ain't broke, don't fix it.
Bill
On Monday 31 August 2009 17:45:21 Bill Campbell wrote:
On Mon, Aug 31, 2009, Alexander Dalloz wrote:
On Mon, Aug 31, 2009, Eugene Vilensky wrote:
Hi,
my users were recently moved from a uw-imap on HPUX to dovecot on EL5. Their sent items and folders went from a ~/Sent mbox file (when using SquirrelMail and Apple Mail both) to ~/mail/Sent for SquirrelMail and ~/mail/Sent Messages for other imap clients. I notice I can cat the files together and the only artifact is I end up with multiple "This message is part of the system do not delete" visible to the user's mail client. Is there any advice anyone can give me regarding this or other solution?
When I wrote a script to extract messages from UW-Imap mbox files (or standard BSD mail folders where UW-imap was used), moving them to Maildir storage, it was easy to just look at the Subject line of each message, ignoring those with the don't remove this.
double plus from my side to use Maildir with dovecot instead of mbox file storage.
There are several scripts and solution for migration. It is easy and once dovecot can use its indexed Maildir, you will see a huge improvement in speed accessing the mailboxes. Especially if mailboxes are not just pretty small.
One of the main reasons we have been using courier-imap for the better part of a decade is that we have several ISP clients where there are 10s of thousands of customers pretty constantly checking their e-mail with POP or IMAP. The courier authentication works much like apache with pre-spawned daemon processes that have proven very effective.
Personally our system does server-side e-mail routing into different IMAP folders based on various headers, and I have 11 folders that I monitor, many of these with several thousand messages (yes I save messages for quick retrieval).
The access speed seems to depend more on the IMAP client than on the server. The current version of squirrelmail surprised me with its speed while horde/imp is pretty sluggish. Apple's Mail.app is quite a bit slower than Thunderbird on the same folders.
FWIW, we use courier-imap, not dovecot, and I know nothing about dovcot beyond that it's imap and how to spell it.
http://wiki.dovecot.org/MailLocation/Maildir http://wiki.dovecot.org/MailboxFormat/Maildir
I'll take a look at these, but will probably stay with what's working for us -- if it ain't broke, don't fix it.
Actually, your earlier statement was incorrect, Bill. Dovecot can handle both imap and pop mail. It all comes down to the configuration files, but then the on-line documentation for dovecot is very good.
Anne
The access speed seems to depend more on the IMAP client than on the server. The current version of squirrelmail surprised me with its speed while horde/imp is pretty sluggish. Apple's Mail.app is quite a bit slower than Thunderbird on the same folders.
Not that I am advocating using Outlook Express but it is the fastest imap client available.
FWIW, we use courier-imap, not dovecot, and I know nothing about dovcot beyond that it's imap and how to spell it.
http://wiki.dovecot.org/MailLocation/Maildir http://wiki.dovecot.org/MailboxFormat/Maildir
I'll take a look at these, but will probably stay with what's working for us -- if it ain't broke, don't fix it.
You do keep up with courier toolchains though? Like when they put authdaemon into its own courier-auth package or something and so on?
I have moved on from maildrop, courier-auth and courier-imap to dovecot which comes with everything I need to interface with postfix and without having to go through multiple frameworks like cyrus-sasl and authdaemon. Oh, and dovecot handled Lookout Express better than courier-imap did (this was 3 years ago)
-
Alexander Dalloz -
Anne Wilson -
Bill Campbell -
Christopher Chan -
Eugene Vilensky