[olug] Postfix & dovecot

[Kevin]

Have you checked out Postfix/Dovecot integrating with Pam?

On Fri, Oct 19, 2012 at 7:56 AM, Lou Duchez <lou at paprikash.com> wrote:
> I don't know how to do that, sorry. Quickest way might be to figure out how
> to make Dovecot use system authentication, and then Postfix will be able to
> glom on to that.
>
>
>> I want to use the system authentication
>>
>> On Fri, Oct 19, 2012 at 1:28 AM, Lou Duchez <lou at paprikash.com> wrote:
>>>
>>> Do you mean you're setting up a mail server for foo.com, bar.com,
>>> oob.com,
>>> and arf.com: so if I am sending an E-Mail to frank at foo.com, the E-Mail
>>> should be delivered to the server you're setting up, and should wait
>>> there
>>> so Frank can IMAP in and read it?
>>>
>>> To handle the accepting of mail from any source, here's what you'd need
>>> in
>>> /etc/postfix/main.cf:
>>>
>>> virtual_mailbox_domains = foo.com bar.com oob.com arf.com
>>> smtpd_relay_restrictions = permit_sasl_authenticated
>>> reject_unauth_destination permit
>>>
>>> As for Dovecot and IMAP (and I would guess you'll want to use Dovecot
>>> authentication for your Postfix SMTP relay), here's what works for me,
>>> based
>>> on the following design:
>>>
>>> -    I've got a directory called /vmail .
>>> -    E-Mail to frank at foo.com is stored under /vmail/Maildir/foo.com/frank
>>> .
>>> -    I've got a text file called /vmail/passwords that lists my logins
>>> and
>>> passwords (the format will be specified below).
>>> -    I've created users "dovecot" and "postfix" to run their respective
>>> utilities.
>>> -    "dovecot" is UID 501 and GID 501.
>>> -    There will be a socket called /vmail/passwordsocket that dovecot
>>> creates, so that postfix has a way to ask dovecot to validate logins and
>>> passwords.
>>> -    This is by no means the best or most secure system out there.  I'm
>>> just
>>> trying to give you a simple thing to get the ball rolling.
>>>
>>> In /etc/dovecot/dovecot.conf:
>>>
>>> auth_mechanisms = plain login
>>> disable_plaintext_auth = no
>>> mail_location = maildir:/vmail/Maildir/%d/%n
>>> userdb {
>>>    args = /vmail/passwords
>>>    driver = passwd-file
>>> }
>>> passdb {
>>>    args = /vmail/passwords
>>>    driver = passwd-file
>>> }
>>> service auth {
>>>    unix_listener /vmail/passwordsocket {
>>>      group = postfix
>>>      mode = 0660
>>>      user = postfix
>>>    }
>>>    user = dovecot
>>> }
>>>
>>>
>>> And in /etc/postfix/main.cf, you'd need the following:
>>>
>>> virtual_mailbox_base = /vmail
>>> home_mailbox = Maildir/
>>> virtual_minimum_uid = 100
>>> virtual_uid_maps = static:501
>>> virtual_gid_maps = static:501
>>> smtpd_sasl_auth_enable = yes
>>> broken_sasl_auth_clients = yes
>>> smtpd_sasl_type = dovecot
>>> smtpd_sasl_path = /vmail/passwordsocket
>>> virtual_mailbox_maps = hash:/etc/postfix/vmailbox
>>> virtual_alias_maps = hash:/etc/postfix/virtual
>>> show_user_unknown_table_name = yes
>>> inet_interfaces = all
>>> myhostname = mail.foo.com
>>>
>>>
>>>
>>> After that is the small matter of defining your mailboxes.  Your
>>> /vmail/passwords would contain lines that looked like:
>>>
>>> frank at foo.com:{plain}frankspassword:dovecot:dovecot
>>>
>>> And postfix would need entries set up in /etc/postfix/vmailbox that
>>> looked
>>> like:
>>>
>>> frank at foo.com    foo.com/frank/
>>>
>>> After any changes to /etc/postfix/vmailbox you'd need to run "postmap
>>> /etc/postfix/vmailbox".
>>>
>>>
>>>
>>> I think this is just about right; I'm basing this on a configuration that
>>> I
>>> set up years ago, it has served me well, and I have since modified it to
>>> add
>>> assorted functionality.  Hopefully I have provided all the necessary nuts
>>> and bolts and haven't left anything out, IKEA style.
>>>
>>>
>>>
>>>
>>>
>>>> How do I set postfix up to accept mail from any source for four
>>>> different domains with no user diferentiation?  how do i set up
>>>> dovecot to use passwd authentication and provide IMAP services for
>>>> those users?
>>>>
>>>>
>>>> Sam
>>>>
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>>> OLUG mailing list
>>> OLUG at olug.org
>>> https://lists.olug.org/mailman/listinfo/olug
>>
>>
>>
>
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