Results 1 to 2 of 2

Thread: Help whitelisting one SMTP server

  1. #1
    sgtstadanko is offline Active Member
    Join Date
    Feb 2006
    Posts
    26
    Rep Power
    9

    Default Help whitelisting one SMTP server

    Hey All,

    I have basically all the possible spam checking rules turned on in my system as my CEO complains vociferously about spam (bug surprise there). However avis is unable to email reservation confirmations to me and I need to whitelist or unblock that server. Here is the log snippet:

    NOQUEUE: reject: RCPT from ccrgws006.cendantcarrental.com[170.225.0.208]: 554 Service unavailable; Client host [170.225.0.208] blocked using dnsbl.njabl.org; open proxy -- 1153750086; from=<avisreservations@avis.com> to=<lmcdonald@southerncarehospice.com> proto=ESMTP helo=<ccrgws006.boulder.mebs.ihost.com>


    Is there a way to do this without turning off dnsbl? Also I think it would be kick axe to have more control over this through the admin gui...but that my two cents.

    Thanks,
    Bill

  2. #2
    anand is offline Zimbra Employee
    Join Date
    Sep 2005
    Posts
    274
    Rep Power
    9

    Default

    Looks to me like you have added the dnsbl check to smtpd_recipient_restrictions. Just add a check_client_access with access table that whitelists the IP address before the dnsbl restriction. There is extensive postfix docs on this. Make sure that you reject_unauth_destination, and then check for whitelist after that - otherwise you will be an open relay for the whitelisted host.

    http://www.postfix.org/uce.html#smtp...t_restrictions

    Note that in Zimbra we specify all the restrictions in smtpd_recipient_restrictions (as opposed to smptd_client_restrictions) so envelope addrs, even on reject, are in the logs.
    Bugzilla - Wiki - Downloads - Before posting... Search!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. initializing ldap...FAILED(256)ERROR
    By manjunath in forum Installation
    Replies: 39
    Last Post: 06-07-2013, 10:27 AM
  2. Zimbra fails after working for 2 weeks
    By Linsys in forum Administrators
    Replies: 10
    Last Post: 10-07-2008, 12:42 AM
  3. need advice on configuring zimbra to work with fax server
    By pheonix1t in forum Administrators
    Replies: 0
    Last Post: 07-11-2007, 07:46 PM
  4. Open Relay Help & Telnet Security Issue
    By OfMacAndMen in forum Installation
    Replies: 17
    Last Post: 07-10-2007, 07:51 PM
  5. Error 256 on Installation
    By RuinExplorer in forum Installation
    Replies: 5
    Last Post: 10-19-2006, 09:19 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •