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Too Much Obvious Spam, What Can Be Done?

CBeyer

Just a sample of the messages (subjects) I received today:

  • LAST-DAY: You currently-have $155 in Walmart-Reward Points: Redeem-Today from Walmart Points Center <WalmartPointsCenter@shoppingcardonlinerewards.com >
  • Garage door repair services from Garage Door Fixes <Drake@janascircle.com>
  • New phone features boost productivity from Telephone Systems <Ellis@shhanchang.com>
  • Always-Wanted to Drive a Ferrari? Rent-an-Exotic Car from Exotic Car Rental <ExoticCarRental@uniquecarrentalshop.com>
  • Hot Vacation-Specials to Costa Rica from Costa Rica Trips <CostaRicaTrips@foremosttravelplans.com>

This comes in every few minutes, not only to me, but the exact messages to everyone in the office (some 80+ employees).

We currently run PureMessage 3.1.3 for Exchange 2010 on Windows Server 2008 R2. This wasn't an issue a few months back, just recently. How do such obvious spam messages get through? Is there any way to combat it? We're talking 30 - 40 messages a day multiplied by 80+ users... Sorry, but that should invalidate your product as a Spam Filter...

Any thoughts, any avenues I can turn to get a resolution to this?

:57455


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  • 0
    We use PureMessage for UNIX with sendmail and had the same issue with increased SPAM getting to users. I did the following to greatly improve the anti-SPAM functioning:

    Add pmx_blocklist to /opt/pmx6/etc/policy.siv file. I found this is needed even if MTA IP Blocking is turned on.

    if pmx_blocklist {
    pmx_mark "pmx_reason" "Block List";
    pmx_quarantine "Blocked";
    stop;
    }

    Set anti-spam options "Disable non-relay checks?" to Yes

    Set anti-spam options "Disable All Network Checks?" to No

    Add "block_dynamic = Yes" to /opt/pmx6/etc/pmx.d/blocklist.conf, run pmx-blocklist-compile, restart pmx and sendmail.

    Add "F=T" to sendmail.mc INPUT_MAIL_FILTER(`Policy',`S=inet:3366@localhost,F=T,T=C:5m;E:8m;R:4m;S:2m')

    Add FEATURE(`sockmap',`inet:4466@localhost',,) to sendmail.mc and in local services turn on MTA IP Blocking.

    Upgrade PureMessage from V6.2.1 to V6.3.0

    Send sample SPAM to Sophos as attachments to is-spam@labs.sophos.com
Reply
  • 0
    We use PureMessage for UNIX with sendmail and had the same issue with increased SPAM getting to users. I did the following to greatly improve the anti-SPAM functioning:

    Add pmx_blocklist to /opt/pmx6/etc/policy.siv file. I found this is needed even if MTA IP Blocking is turned on.

    if pmx_blocklist {
    pmx_mark "pmx_reason" "Block List";
    pmx_quarantine "Blocked";
    stop;
    }

    Set anti-spam options "Disable non-relay checks?" to Yes

    Set anti-spam options "Disable All Network Checks?" to No

    Add "block_dynamic = Yes" to /opt/pmx6/etc/pmx.d/blocklist.conf, run pmx-blocklist-compile, restart pmx and sendmail.

    Add "F=T" to sendmail.mc INPUT_MAIL_FILTER(`Policy',`S=inet:3366@localhost,F=T,T=C:5m;E:8m;R:4m;S:2m')

    Add FEATURE(`sockmap',`inet:4466@localhost',,) to sendmail.mc and in local services turn on MTA IP Blocking.

    Upgrade PureMessage from V6.2.1 to V6.3.0

    Send sample SPAM to Sophos as attachments to is-spam@labs.sophos.com
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