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How to block (deny) email from ...

DanielC
What is the easiest way to block all mails coming from a particular sender or domain. 
I'm receiving a lot of virus-containing messages from a particular person. The virusscanner intercepts them but it would be easier to just block this person.

Any ideas?


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  • 0 in reply to Simon Shaw
    It does not seems not to work.

    There is a line in the file /etc/chroot-smtp/etc/exim.conf  that read sender_reject_recipients = @@lsearch*;/etc/exim.blocksenders

    At first sight this looks to point to the wrong directory. (there is no file /etc/exim.blockedsenders)

    Do I need to change the exi.conf file then?

    Thanks
  • 0 in reply to DanielC
    No, you don't need to change the conf file.
    remember the path is chroot'ed.
  • 0 in reply to Simon Shaw
    I added a line domainnamesearchengine.net (because most of our spam now comes from a_user@domainnamesearchengine.net) in the exim.blockedsenders file and restarted the smtp but the spam-mail still comes in

    Is there a way to check what the result should be?

    Or do I have to use wildcards?

    Daniel
  • 0 in reply to DanielC
    Is it blocksenders or blockedsenders ?

    Mine works most of the time but I still get mails in from some blocked domains on occasion.
    I think whats happening is the domains not resolving to the matching IP or something.  Unsure.  Some feedback from ASL staff would be appreciated on this.
    ie, what works and what won't work for blocking spam.  Thing is exiscan is written by a 3rd party...
  • 0 in reply to Simon Shaw
    OK People,   
    I got the block to work for mail coming from "user1@mydomain.com" to block from outside my domain.
    Now I need to know how to block mail to "user1@mydomain.com" from outside my domain.
    This user is no longer a user on my mail server and I want to block all mail to said user at the mail proxy.

    Thanks All
  • 0 in reply to iccnt
    For testing, I added my yahoo address to /var/chroot-smtp/etc/exim.blockedsenders and restarted the SMTP daemon (/etc/rc.d/smtp restart) but messages sent from that account still go through. What else can I do?
  • 0 in reply to gpeterson
    nevermind, i figured it out.
  • 0 in reply to gpeterson
    Yes, well maybe you did figure it out..But don't you think it would be appropriate for you to post this solution properly here? Did you not receive any help for your problem?

    Thanks for your consideration of the rest of us.
  • 0 in reply to Jadal
    I had to edit exim.conf and exim.conf-default as follows:

    sender_reject_recipients = @@lsearch*;/etc/exim.blocksenders

    changed to

    sender_reject_recipients = /etc/exim.blocksenders

    BUT - it does not work reliably. Some blocked domains still get through.
  • 0 in reply to gpeterson
    Can someone please give an explanation on what 
    @@lsearch* in the line sender_reject_recipients = @@lsearch*;/etc/exim.blocksenders does?
    And how can I block mail coming into a specific user.
    How can you block mail sent into the system ie. "Make your #$$% larger"   [:O]  
    That would be very handy to know how to filter out message content.

    Thanks