Well I used courier since 1998 and then I switched a few years ago and
the speed is noticeble
Just my 2 cents
Inviato da iPhone
Il giorno 15/gen/09, alle ore 20:15, Manvendra Bhangui <mbhan...@gmail.com
> ha scritto:
On Fri, Jan 16, 2009 at 6:36 AM, Shane Chrisp <sh...@2000cn.com.au>
wrote:
Not having a go at the excellent work that's been done, but I don't
know why anyone would want to run courier these days when Dovecot
runs so much faster and uses so much less in the way of system
resources.
I use courier imap for few reasons below. Honestly, I haven't
studied dovecot so much as to come to pros and cons.
IMAP and POP3 services get configured under supervise and
tcpserver. i.e. courier-imap is daemontools and ucspi-tcp friendly.
Since I use qmail as the MTA, everthing is quite like running qmail.
The code is modular. The programs for login, authentication and
actual implementation of IMAP/POP3 protocol are all handled by
different programs (e.g. imaplogin, pop3login, authvchkpw, imapd,
pop3d). This makes it trivial implementing of hooks into courier-
imap. I have implemented hooks to force password change, implement
instant bulletins, send welcome mails to new users, quota warning to
users exceeding disk space, etc.
The modular code has also helped me implement a proxy for IMAP and
POP3. For an ISP we had around 3Million+ users. Using the proxy it
was possible to have these users split across 30 different servers
located at different places. NFS was not possible and the proxy
authenticated against a database containing user locations and
executed the executable imapd or pop3d on the remote host. The user
could log in to any machine and still see all his/her mails.
All configuration items in courier-imap are configurable through
environment variables. e.g. IMAP_CHECK_ALL_FOLDERS, IMAP_EMPTYTRASH,
MAXPERIP, MAILDIRPATH, etc. Hence using envdir invocation in the run
file of supervise makes it possible to configure courier-imap
through simple text files.
I am sure same would be possible in dovecot but I do not know as I
have grown up from the early days (2001) with courier-imap. One of
these days I might dirty my hands with dovecot. Till then it is
courier-imap for me :)
Regards Manvenda (http://www.indimail.org)
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