Dovecot Setup

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Dovecot

1. Introduction
1.1 Install Dovecot
1.2 Configure Dovecot

Introduction

Requires that a server certificate signed by CACert.org has already been aquired.

GetServerCertificateFromCACert

Install Dovecot

 apt-get install dovecot-imapd dovecot-pop3d

Configure Dovecot

 vi /etc/dovecot/dovecot.conf

THE DOVECOT.CONF FILE IS BIG, I HAVE ONLY HIGHLIGHTED THE CHANGES THAT I MADE TO THE DEFAULT DOVECOT.CONF FILE AS PROVIDED IN THE DEBIAN PACKAGE.

 # Protocols we want to be serving: imap imaps pop3 pop3s
 # If you only want to use dovecot-auth, you can set this to "none".
 #protocols = imap imaps
 protocols = pop3 imap pop3s imaps

 # Disable LOGIN command and all other plaintext authentications unless
 # SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
 # matches the local IP (ie. you're connecting from the same computer), the
 # connection is considered secure and plaintext authentication is allowed.
 disable_plaintext_auth = no

 # PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
 # dropping root privileges, so keep the key file unreadable by anyone but
 # root.
 ssl_cert_file = /etc/ssl/private/flexion_certificate.pem
 ssl_key_file = /etc/ssl/private/flexion_privatekey.pem

 # chroot login process to the login_dir. Only reason not to do this is if you
 # wish to run the whole Dovecot without roots.
 # http://wiki.dovecot.org/Rootless
 login_chroot = yes

 ##
 ## Mailbox locations and namespaces
 ##
 
 # Location for users' mailboxes. This is the same as the old default_mail_env
 # setting. The default is empty, which means that Dovecot tries to find the
 # mailboxes automatically. This won't work if the user doesn't have any mail
 # yet, so you should explicitly tell Dovecot the full location.
 #
 # If you're using mbox, giving a path to the INBOX file (eg. /var/mail/%u)
 # isn't enough. You'll also need to tell Dovecot where the other mailboxes are
 # and where Dovecot can place its index files. This is called the "root mail
 # directory", and it must be the first path given in the mail_location setting.
 #
 # There are a few special variables you can use, eg.:
 #
 #   %u - username
 #   %n - user part in user@domain, same as %u if there's no domain
 #   %d - domain part in user@domain, empty if there's no domain
 #   %h - home directory
 #
 # See /usr/share/doc/dovecot-common/variables.txt for full list. Some examples:
 #
 #   mail_location = maildir:~/Maildir
 #   mail_location = mbox:~/mail:INBOX=/var/mail/%u
 #   mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n
 #
 # http://wiki.dovecot.org/MailLocation
 #
 mail_location = maildir:/home/virtual/%d/var/spool/mail/%n

 # Valid UID range for users, defaults to 500 and above. This is mostly
 # to make sure that users can't log in as daemons or other system users.
 # Note that denying root logins is hardcoded to dovecot binary and can't
 # be done even if first_valid_uid is set to 0.
 first_valid_uid = 150
 #last_valid_uid = 0

 auth default {
   # Space separated list of wanted authentication mechanisms:
   #   plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi
   mechanisms = plain login

  # passwd-like file with specified location
  # http://wiki.dovecot.org/AuthDatabase/PasswdFile
  passdb passwd-file {
    # Path for passwd-file
    args = /etc/virtual_hostess/passwd-mail
  }

   # static settings generated from template
   # http://wiki.dovecot.org/UserDatabase/Static
   userdb static {
     # Template for the fields. Can return anything a userdb could normally
     # return. For example:
     #
     #  args = uid=500 gid=500 home=/var/mail/%u 
     #
     args = uid=150 gid=8 home=/home/virtual/%d/var/spool/mail/%n/
   }

   # User to use for the process. This user needs access to only user and
   # password databases, nothing else. Only shadow and pam authentication
   # requires roots, so use something else if possible. Note that passwd
   # authentication with BSDs internally accesses shadow files, which also
   # requires roots. Note that this user is NOT used to access mails.
   # That user is specified by userdb above.
   user = vmail

References

$Id: DovecotSetup,v 1.13 2008/07/08 13:56:40 martin Exp $

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Dovecot

Introduction

Install Dovecot

Configure Dovecot

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