Running Behind Firewall

Discussion in 'Installation/Configuration' started by edong, Oct 19, 2005.

  1. edong

    edong New Member


    I'm running my ISPconfig server behind firewall, for two days it is running completely fine. but after subscribing to [email protected] my ISPconfig server no longer receives mail. i tried to send mail from outside to my ISPconfig server but the mail bounces back and says:

    Hi. This is the qmail-send program at
    I'm afraid I wasn't able to deliver your message to the following
    This is a permanent error; I've given up. Sorry it didn't work out.

    <[email protected]>:
    x.x.x.x does not like recipient.
    Remote host said: 554 <[email protected]>: Relay access denied
    Giving up on x.x.x.x.

    SPAMASSASIN considered this as SPAM:

    From:[email protected]
    To:[email protected]
    Subject:***SPAM*** [ISPConfig] subcription confirmation -SCOxx:xxxxxxx

    Content analysis details: (5.6 points, 5.0 required)

    pts rule name description
    ---- ---------------------- --------------------------------------------------
    0.2 NO_REAL_NAME From: does not include a real name
    0.1 FORGED_RCVD_HELO Received: contains a forged HELO
    1.7 MSGID_FROM_MTA_ID Message-Id for external message added locally
    1.1 SUBJ_HAS_UNIQ_ID Subject contains a unique ID
    2.5 RCVD_IN_XBL RBL: Received via a relay in Spamhaus XBL
    [x.x.x.x listed in]

    x.x.x.x is my firewall's IP
    does my IP address is now listed in blocklist of
    if so how can I unblock my IP address?
    is there a way to add my firewall's IP to whitelist?
    should i tweak my ISPConfig server to run behind firewall?

  2. till

    till Super Moderator Staff Member ISPConfig Developer

    First of all, if your mailserver stopped working after you subscribed to the ISPConfig nwsletter it is a coincident. The newsletter subscription simply sends an email back where you have to click on the confirm link. You have posted this confirmation email from the newsletter subscription above.

    To your listing: Is your server hosted on a DSL line or in a datacenter? Most DSL IP addresses are listed at and you cannot remove them from there because thy belong to the range of IP's that are listed for dynamic IP assignement (Dialup or DSL).

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