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Thread: RBL Order used

  1. #1
    ArcaneMagus's Avatar
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    Default RBL Order used

    Is there a specific order that the RBL lists configured in the Admin Console are used? My list currently looks like this in the Admin Console

    1. zen.spamhaus.org
    2. bl.spamcop.net
    3. dnsbl-3.uceprotect.net
    4. dnsbl-2.uceprotect.net
    5. dnsbl-1.uceprotect.net

    However in watching the log files I only see blockings due to the bl.spamcop.net list. This isn't exactly a problem...I just want to be sure that it is actually using the other lists.

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    SchlingBlade is offline Intermediate Member
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    SpamHaus contacted me recently stating they are going to be a paid service for commercial use, so they may not be responding to your lookup requests.

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    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by SchlingBlade View Post
    SpamHaus contacted me recently stating they are going to be a paid service for commercial use, so they may not be responding to your lookup requests.
    They should be responding, for non-commercial use they are a free service. The following is from this page

    Use of the Spamhaus DNSBLs via DNS queries to our public DNSBL servers is free of charge if you meet all three of the following criteria:

    1. Your use of the Spamhaus DNSBLs is non-commercial*, and
    2. Your email traffic is less than 80,000 SMTP connections per day, and
    3. Your DNSBL query volume is less than 320,000 queries per day.

    If you do not fit all three of these criteria then please do not use our public DNSBL servers, instead see 'Professional Use' (below) which delivers our DNSBL data to your servers. If you are in any doubt as to whether you fit within our free use criteria, or think you may be likely to soon exceed our free use criteria, please switch to 'Professional Use'.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    ArcaneMagus's Avatar
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    Well seeing as how our total queries should be on the range of ~3k a day and this is just for our company we fit within their definition of non-commercial use so that isn't an issue. Is there any easy way to verify that it is actually using any of the other lists?

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    norixam is offline Intermediate Member
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    How do I set up these lists?

    It is in version 4.5.9?

    Thanks.

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    In the 4.5.x series and in 5.0.x below .4 (and possibly .3) you need to run the following commands as the zimbra user:

    Code:
    zmprov mcf zimbraMtaRestriction "reject_rbl_client zen.spamhaus.org"
    zmprov mcf zimbraMtaRestriction "reject_rbl_client bl.spamcop.net"
    zmprov mcf zimbraMtaRestriction "reject_rbl_client dnsbl-3.uceprotect.net"
    zmprov mcf zimbraMtaRestriction "reject_rbl_client dnsbl-2.uceprotect.net"
    zmprov mcf zimbraMtaRestriction "reject_rbl_client dnsbl-1.uceprotect.net"
    (I think this is the correct way to add them all...)

    Afterwards run a "zmprov gcf zimbraMtaRestriction" and you should get something like the following:
    Code:
    zimbraMtaRestriction: reject_invalid_hostname
    zimbraMtaRestriction: reject_non_fqdn_hostname
    zimbraMtaRestriction: reject_non_fqdn_sender
    zimbraMtaRestriction: reject_unknown_client
    zimbraMtaRestriction: reject_unknown_sender_domain
    zimbraMtaRestriction: reject_rbl_client zen.spamhaus.org
    zimbraMtaRestriction: reject_rbl_client bl.spamcop.net
    zimbraMtaRestriction: reject_rbl_client dnsbl-3.uceprotect.net
    zimbraMtaRestriction: reject_rbl_client dnsbl-2.uceprotect.net
    zimbraMtaRestriction: reject_rbl_client dnsbl-1.uceprotect.net

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    ArcaneMagus's Avatar
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    It looks like my issue (and anybody who tries to add any but a very small number of RBL) was the file /opt/zimbra/conf/postfix_recipient_restrictions.cf

    As discussed in RBLs restricted? it appears that any RBL not listed in this file is not allowed into postfix and thus is not used. I am trying to find a bug # for this as this is a serious issue. Exposing a admin UI for this and then not allowing almost anything put into such UI to work is a pretty annoying and stupid bug that should have been caught in testing...

  8. #8
    norixam is offline Intermediate Member
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    Talking

    Thanks.

    How do I know if the sender to the RBL?

    PS. I do not know how much these lists!

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    To check the status of your RBL you can either use something like Configuring and Monitoring Postfix DNSBL - Zimbra :: Wiki

    Or you can simply run the following command:
    Code:
    tail -f /var/log/mail | grep "blocked using"
    Which will show you a real time status as items are blocked.

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