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I've spent a few days trying to get Postfix to work correctly, and I'm close to giving up. I went from having a regular webhost who did everything via cPanel ...
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  1. #1
    Just Joined!
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    Aug 2007
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    Postfix+Spamassassin+Courier IMAP questions...I have no idea what I'm doing.


    I've spent a few days trying to get Postfix to work correctly, and I'm close to giving up. I went from having a regular webhost who did everything via cPanel to renting my own box through ServerPronto. No cPanel because it's too expensive. I'm using Webmin and/or Putty to configure things, and I'm very very confused. My layout:

    1 Server with 1 IP
    4 Domains (each w/ associated unix login)
    Everything in DNS appears to be fine. Each domain has a cname of mail.whatverdomain.com (mail.domain1.com, mail.domain2.net, etc)

    I want mail delivered to /home/~user/Mail/ folder
    env (using etc/profile) has "MAIL=/home/$USER/Mail" set up
    Postfix is set to deliver to "Mail/" in the home directory

    My issues arise with mapping(s):

    Delivery: canonical or virtual mappings? I bounce between /etc/postfix/virtual and /etc/postfix/canonical to no avail.

    Sending: I want each domain to be able to send messages without the From being rewritten to the primary domain. At the same time, I don't want to be a mail relay.

    Transport mapping: Should I define domain1 :[mail.domain1.com] for each domain in /etc/postfix/transport?

    I just need the basics for a good main.cf file that will achieve my goal of each domain getting mail in its appropriate mailbox when its sent from outside.

    I CAN send from the local machine (using webmin) to the outside test address. However I just replied to those messages and they aren't showing up.

    I have issues with courier-imap but I just want to tackle the Postfix problem first, then figure out why every time I telnet (domain1.com 143) and login to IMAP..it immediately boots me out the instant I log in successfully.

    Any help would be appreciated. A skeletonized example main.cf would be a godsend.

    Thanks!

    EDIT: about the mailboxes themselves: Will they be automatically created on initial message delivery or do I create them myself first? Do I create them as the user, or as root? What chmod/chgrp do I use on them?

    EDIT2: Here is my main.cf
    Code:
    #soft_bounce = no
    queue_directory = /var/spool/postfix
    command_directory = /usr/sbin
    daemon_directory = /usr/libexec/postfix
    mail_owner = postfix
    #default_privs = nobody
    myhostname = mail.comfortablydumb.net
    mydomain = comfortablydumb.net
    myorigin = $mydomain
    inet_interfaces = $myhostname, localhost
    #inet_interfaces = localhost
    mydestination = $myhostname, localhost.$mydomain, localhost, comfortablydumb.net
    local_recipient_maps = unix:passwd.byname $alias_maps
    unknown_local_recipient_reject_code = 550
    #mynetworks_style = class
    #mynetworks_style = subnet
    #mynetworks_style = host
    mynetworks = 65.111.170.0/28, 127.0.0.0/8
    #mynetworks = $config_directory/mynetworks
    #mynetworks = hash:/etc/postfix/network_table
    #relay_domains = $mydestination
    #relayhost = $mydomain
    #relayhost = [gateway.my.domain]
    #relayhost = [mailserver.isp.tld]
    #relayhost = uucphost
    #relayhost = [an.ip.add.ress]
    #relay_recipient_maps = hash:/etc/postfix/relay_recipients
    #in_flow_delay = 1s
    alias_maps = hash:/etc/aliases
    alias_database = hash:/etc/aliases
    home_mailbox = Mail/
    mail_spool_directory = /var/spool/mail
    debug_peer_level = 2
    debugger_command =
    	 PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
    	 xxgdb $daemon_directory/$process_name $process_id & sleep 5
    sendmail_path = /usr/sbin/sendmail.postfix
    newaliases_path = /usr/bin/newaliases.postfix
    mailq_path = /usr/bin/mailq.postfix
    setgid_group = postdrop
    html_directory = no
    manpage_directory = /usr/share/man
    sample_directory = /usr/share/doc/postfix-2.2.10/samples
    readme_directory = /usr/share/doc/postfix-2.2.10/README_FILES
    # ----------------------------------------------------
    # My additions
    # ----------------------------------------------------
    #mailbox_command = /usr/bin/procmail -Y -a $HOME
    smtpd_client_restrictions = permit_mynetworks, reject
    smtpd_helo_restrictions = reject_unknown_helo_hostname
    smtpd_sender_restrictions = reject_unknown_sender_domain
    smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
    smtpd_data_restrictions = reject_unauth_pipelining
    smtpd_end_of_data_restrictions = check_policy_service unix:private/policy
    virtual_mailbox_domains = hash:/etc/postfix/virtual
    virtual_mailbox_base  = /home/$USER
    virtual_mailbox_maps = hash:/etc/postfix/virtual
    virtual_uid_maps = hash:/usr/local/postfix/etc/virtual_uids
    virtual_gid_maps = hash:/usr/local/postfix/etc/virtual_gids 
    virtual_alias_maps = hash:/etc/postfix/virtual
    EDIT again: updated the main.cf entry above. The machine passes local mail fine, but outside mails bounce with "Client Host Rejected: Access Denied" from the outside mail system i attempt to send from.

  2. #2
    Just Joined!
    Join Date
    Aug 2007
    Posts
    2
    nevermind. i've fixed it.

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