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Summary: Default user plugin.
Classification: Contribs
Product: SME Contribs
Version: 7.4
Platform: PC
OS/Version: Unknown
Status: NEW
Severity: normal
Priority: P3
Component: smeserver-zarafa
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
CC: [email protected]
Due to some recent changes in Zarafa 6.4, I would like to revisit this issue
for additional discussion.
It was decided to use the db plugin as the default mostly because...
1)The unix plugin was messy and included unwanted users and groups in the
address book.
2)SME-LDAP was still experimental.
I have done some testing and would like to make everyone aware of a couple
things I discovered in 6.4RC1...
1) About the unix plugin, it has been updated in 6.4 and now includes an option
to exclude uid's and gid's. This fixes the major drawback that steered us away
from this plugin in the first place.
We can now use the user and group db's to exclude certain users and groups and
clean up the address book and include the admin account. This plugin also
automatically syncs users, groups and passwords on the fly with very little
effort.
2) About the LDAP plugin. It has so many advantages but will require much,
much more work to implement. As it stands, it is not viable for SME7 but we
should consider looking into it for SME8 if 8 will be using LDAP out of the
box.
a)Multi-Company support.
b)Possibility to integrate into existing MS-AD.
c)External LMTP (postfix required for optimal usage).
3)Postfix can be installed and handles LDAP auth and LMTP out of the box (Qmail
has a plugin for LDAP auth). LMTP has huge advantages and with the way people
demand on using their email as a file storage area, I see this as a required
option. We are currently losing some Exchange servers to hosted Zimbra options
because of this very reason (Exchange just can't deal with large email
databases very well, even Server 2008 has issues when the mail db gets big).
Note: For those of you that don't know what LMTP (Local Mail Transfer Protocol)
is, it is a protocal that allows the storage of an attachment only once on the
server no matter how many local recipients are receiving it. In my personal
use of email, we get 50MB attachments sent to 10 people in our company. This
equates to 500MB of storage space but if we had LMTP, it would only require
50MB because it only stores the attachment once. If you forward the attachment
to another local user, it just points the new recipient to the attachment and
never sends it again and still only requires 50MB. This also works with
multi-company scenarios. Zarafa without Postfix can do LMTP for local email
but not for incoming (outside) email unless you use Postfix and enable it.
Anyhow, just some food for thought. If we are resigned to the db plugin,
please feel free to close this ticket.
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