Spam Mail Settings

Discussion in 'ISPConfig 3 Priority Support' started by arraken, Oct 8, 2014.

  1. arraken

    arraken Member HowtoForge Supporter


    I have some questions regarding spam-mail settings on my multiserver setup.

    A client told me that some customers can't send him mail, meaning that their mails never reach him.

    I researched the mail-logs, and found this for an example mail which was sent from [email protected] -> [email protected]

    Oct  6 07:28:22 mail1 postfix/smtpd[23865]: connect from[]
    Oct  6 07:28:23 mail1 postfix/smtpd[23865]: NOQUEUE: reject: RCPT from[]: 554 5.7.1 Service unavailable; Client host [] blocked using; Your e-mail service was detected by (NiX Spam) as spamming at Mon, 06 Oct 2014 07:15:12 +0200. Your admin should visit; [email protected] [email protected] proto=ESMTP helo=<>
    Oct  6 07:28:23 mail1 postfix/smtpd[23865]: disconnect from[]
    Oct  6 07:29:34 mail1 postfix/smtpd[23865]: connect from[]
    So apparently the sender was seen as spamming, right?

    What is a bit confusing for me is, that the client has his spam filter deactivated on the domain, and also on the specific mailbox. So why does the mail still get blocked? Are there some general spam-settings which block this mail even before the clients spam-settings count? Can we somehow influence this? (e.g. make the spam-settings less strict)
  2. till

    till Super Moderator Staff Member ISPConfig Developer


    The line in your Log is from a RBL (Realtime vlaclist) that you must have set globally on the server. S it is not from the spamfilter. Therefor the clients spamfilter settings can not have any influence on that.

    Nixspam as sometimes false positives. You should consider to remove that RBL from your setup.

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