[TriLUG] Managing postfix/squirrelmail

[Magnus]

On 5/10/06, Douglas Ward <binaryflow at gmail.com> wrote:
>
> 1) I intend to set up the users (regular system accounts) on the server
> and
> store their mailboxes in the /home/username directory.  I can easily back
> up
> the mailbox using rsync.  How can I back up the user accounts in case the
> server were to ever fail?  I don't think that backing up /etc/passwd will
> catch the passwords.



You *could* put all of the user accounts in as local system accounts.  You
will need to back up /etc/passwd, /etc/group, /etc/shadow to get all of the
user metadata & password hashes.

If you already have a Windows domain, and it sounds like you probably do,
you can actually authenticate mail users against it directly if you install
Microsoft Services For UNIX (SFU) on your Domain Controller and set up PAM
on your Linux mail server to authenticate using LDAP/KerberosV against your
Windows DC.


2) I am eying squirrelmail as the webmail application.  With the use of lots
> of plug-ins I can get close to the Exchange server that I am replacing.
> Does anyone know of any other webmail applications that come closer to
> Outlook Web Access out of the box?  I am specifically thinking about auto
> forwarding, out of office assistant, calendar, address book groups,
> contact
> imports, etc...



Squirrelmail is great.  I don't think you'll be disappointed.

Do some testing of various IMAP daemons and mbox vs. maildir.  My home mail
server is using mbox format with dovecot imap daemon, authenticating against
OpenLDAP & KerberosV and for a small server it's fine.  I've got an imap
server at work that handles several thousand accounts though and that uses
maildir format with cyrus imap (auth against mysql).  And I'll tell you what
that works exceedingly well.