The benefits of Cyrus IMAP

[gezley]

I bought the manual yesterday in order to support egroupware. I still have questions which the manual does not answer.

1) The recommended IMAP server is Cyrus-IMAP. What are the extra features this gives which Dovecot doesn't?

2) I am unclear what egroupware data is stored in LDAP, and what egroupware data is stored in PostgreSQL, EGW user accounts in LDAP? Email user accounts in LDAP? Address books in LDAP? Cyrus has its own mail storage so what is left to store in the PostgreSQL database?

3) If I create a user account in the egroupware admin section does that automatically create an email account for the user? In other words, does egroupware populate the OpenLDAP store for me?

I guess the biggest problem I am having is conceptual, not technical: what manual configuration must be done in Postfix, Cyrus-IMAP, PostgreSQL and OpenLDAP **before** installing egroupware? Do I need to create email accounts first, or does egroupware handle everything once Postfix-Cyrus-OpenLDAP and PostgreSQL are installed?

The manual is not clear about this, and I think for 29.99 euro it should be. For a PDF this is expensive, and I think there should be more effort put into giving users a clearer conceptual overview of what is needed and how it all fits together, so that users can have their installation working BEFORE installing egroupware, without having to stumble along and realise half-way through that LDAP functionality needs to be compiled into Cyrus or Postfix or whatever. In the list of system requirements we are told Cyrus is the best-supported IMAP server but we are nowhere told what extra functionality it offers to egroupware. I expected the manual to fill gaps like this. I am a little disappointed that it does not.
Thank you.

Gerard

[piscue]

Hi,

1)

The most wanted features (for me) on Cyrus is a granular acl control and global folders.

Egroupware can handle without trouble this two major features that other IMAP open source servers can't give it

2)

You  can choose if:

accounts are stored on ldap or database.

address book stored on ldap or database

cyrus has their own storage on filesystem.

3)

If you choose to store egroupware accounts on ldap and cyrus uses ldap accounts, any new account It's also an e-mail account.

I guess it's better to have a system with cyrus, postfix and ldap before set up egroupware. And the integrate a new egroupware installation with this components using ldap connection.

On Mon, Jan 30, 2012 at 02:21, gezley <[hidden email]> wrote:

I bought the manual yesterday in order to support egroupware. I still have
questions which the manual does not answer.

1) The recommended IMAP server is Cyrus-IMAP. What are the extra features
this gives which Dovecot doesn't?

2) I am unclear what egroupware data is stored in LDAP, and what egroupware
data is stored in PostgreSQL, EGW user accounts in LDAP? Email user accounts
in LDAP? Address books in LDAP? Cyrus has its own mail storage so what is
left to store in the PostgreSQL database?

3) If I create a user account in the egroupware admin section does that
automatically create an email account for the user? In other words, does
egroupware populate the OpenLDAP store for me?

I guess the biggest problem I am having is conceptual, not technical: what
manual configuration must be done in Postfix, Cyrus-IMAP, PostgreSQL and
OpenLDAP **before** installing egroupware? Do I need to create email
accounts first, or does egroupware handle everything once
Postfix-Cyrus-OpenLDAP and PostgreSQL are installed?

The manual is not clear about this, and I think for 29.99 euro it should be.
For a PDF this is expensive, and I think there should be more effort put
into giving users a clearer conceptual overview of what is needed and how it
all fits together, so that users can have their installation working BEFORE
installing egroupware, without having to stumble along and realise half-way
through that LDAP functionality needs to be compiled into Cyrus or Postfix
or whatever. In the list of system requirements we are told Cyrus is the
best-supported IMAP server but we are nowhere told what extra functionality
it offers to egroupware. I expected the manual to fill gaps like this. I am
a little disappointed that it does not.
Thank you.

Gerard

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[gezley]

Thank you so much. It is much clearer to me now. I am familiar with Postfix and Dovecot so I think I will stick with them - the benefits of Cyrus-IMAP that you mention are not compelling enough to switch, and my planned EGW server will be for fewer than 50 users. Next thing I need to learn is OpenLDAP integration with Postfix, Dovecot and EGW.

[Pongrácz István-2]

----------------eredeti üzenet-----------------
Feladó: "gezley" [hidden email]
Címzett: [hidden email]
Dátum: Mon, 30 Jan 2012 16:55:33 -0800 (PST)
-------------------------------------------------
 
 
> Thank you so much. It is much clearer to me now. I am familiar with Postfix
> and Dovecot so I think I will stick with them - the benefits of Cyrus-IMAP
> that you mention are not compelling enough to switch, and my planned EGW
> server will be for fewer than 50 users. Next thing I need to learn is
> OpenLDAP integration with Postfix, Dovecot and EGW.

Hi,

If you have enough free time, give cyrus-imap a chance and check the benefits.
Even a few users will appreciate its features and speed.
Just my 2 cents.

Cheers,
István


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[gezley]

Thank you István - I will take your advice and give it a try.

:)