Exchange 2003, Google DNS, and IMF Connection Filtering RBL Failures
|
From: Ace Fekay [MCT] on 26 Dec 2009 19:15 "Russ SBITS.Biz [SBS-MVP]" <russ(a)REMOVETHIS.sbits.biz> wrote in message news:4754ABCD-5178-4E32-9D1E-B200707AEF16(a)microsoft.com... > Another reason why I think OPENDNS.com ROCKS :) > Free and "WORKS" :) > Russ > I know a few colleagues using it. Works nicely. :-) Ace
From: Kerry Brown on 27 Dec 2009 00:07 Yes, but it can cause some weird Exchange NDRs because it never returns NXDOMAIN. -- Kerry Brown MS-MVP - Windows Desktop Experience: Systems Administration http://www.vistahelp.ca/phpBB2/ "Russ SBITS.Biz [SBS-MVP]" <russ(a)REMOVETHIS.sbits.biz> wrote in message news:4754ABCD-5178-4E32-9D1E-B200707AEF16(a)microsoft.com... > Another reason why I think OPENDNS.com ROCKS :) > Free and "WORKS" :) > Russ > > -- > > Russell Grover - SBITS.Biz [SBS-MVP] > Microsoft Gold Certified Partner > Microsoft Certified Small Business Specialist > World Wide 24hr SBS Remote Support - http://www.SBITS.Biz > 30% OFF Microsoft Online Services - > http://www.microsoft-online-services.com/ > > > > "Ace Fekay [MCT]" <aceman(a)mvps.RemoveThisPart.org> wrote in message > news:u32BfnchKHA.5568(a)TK2MSFTNGP02.phx.gbl... >> "Chucko" <chucko(a)myrealbox.com> wrote in message >> news:%239v7seahKHA.5380(a)TK2MSFTNGP06.phx.gbl... >>> Yes, as it turns out, the folks at Spamhaus are aware of the problem. >>> >>> From their FAQ: >>> >>> Your DNSBL blocks nothing at all! >>> >>> Check what DNS resolvers you are using: If you are using a free "open >>> DNS resolver" service such as Google Public DNS or Level3's public DNS >>> servers to resolve your DNSBL requests, in most cases you will receive a >>> "not listed" (NXDOMAIN) reply from Spamhaus' public DNSBL servers. >>> Please use your own DNS servers when doing DNSBL queries to Spamhaus. >>> >> >> Thank you for posting this info. I hope it helps others when they search >> for this issue. >> >> :-) >> >> Acee >> >> >>
From: Russ SBITS.Biz [SBS-MVP] on 27 Dec 2009 02:21 If the domain doesn't exist? NXDOMAIN? I really don't care about NDR's I'm more in love with the Blocking of "BAD" Sites For FREE! Clients love this... :) Russ -- Russell Grover - SBITS.Biz [SBS-MVP] Microsoft Gold Certified Partner Microsoft Certified Small Business Specialist World Wide 24hr SBS Remote Support - http://www.SBITS.Biz 30% OFF Microsoft Online Services - http://www.microsoft-online-services.com/ "Kerry Brown" <kerry(a)kdbNOSPAMsys-tems.c*a*m> wrote in message news:O27j4JrhKHA.1456(a)TK2MSFTNGP06.phx.gbl... > Yes, but it can cause some weird Exchange NDRs because it never returns > NXDOMAIN. > > -- > Kerry Brown > MS-MVP - Windows Desktop Experience: Systems Administration > http://www.vistahelp.ca/phpBB2/ > > > "Russ SBITS.Biz [SBS-MVP]" <russ(a)REMOVETHIS.sbits.biz> wrote in message > news:4754ABCD-5178-4E32-9D1E-B200707AEF16(a)microsoft.com... >> Another reason why I think OPENDNS.com ROCKS :) >> Free and "WORKS" :) >> Russ >> >> -- >> >> Russell Grover - SBITS.Biz [SBS-MVP] >> Microsoft Gold Certified Partner >> Microsoft Certified Small Business Specialist >> World Wide 24hr SBS Remote Support - http://www.SBITS.Biz >> 30% OFF Microsoft Online Services - >> http://www.microsoft-online-services.com/ >> >> >> >> "Ace Fekay [MCT]" <aceman(a)mvps.RemoveThisPart.org> wrote in message >> news:u32BfnchKHA.5568(a)TK2MSFTNGP02.phx.gbl... >>> "Chucko" <chucko(a)myrealbox.com> wrote in message >>> news:%239v7seahKHA.5380(a)TK2MSFTNGP06.phx.gbl... >>>> Yes, as it turns out, the folks at Spamhaus are aware of the problem. >>>> >>>> From their FAQ: >>>> >>>> Your DNSBL blocks nothing at all! >>>> >>>> Check what DNS resolvers you are using: If you are using a free "open >>>> DNS resolver" service such as Google Public DNS or Level3's public DNS >>>> servers to resolve your DNSBL requests, in most cases you will receive >>>> a "not listed" (NXDOMAIN) reply from Spamhaus' public DNSBL servers. >>>> Please use your own DNS servers when doing DNSBL queries to Spamhaus. >>>> >>> >>> Thank you for posting this info. I hope it helps others when they search >>> for this issue. >>> >>> :-) >>> >>> Acee >>> >>> >>>
From: Chucko on 27 Dec 2009 12:50 I believe this behavior is configurable. You just have to turn off their "SmartCache", under Dashboard, (select your network), Settings, Advanced Settings. Once you turn it off, you'll see NXDOMAIN when appropriate. "Kerry Brown" <kerry(a)kdbNOSPAMsys-tems.c*a*m> wrote in message news:O27j4JrhKHA.1456(a)TK2MSFTNGP06.phx.gbl... > Yes, but it can cause some weird Exchange NDRs because it never returns > NXDOMAIN. > > -- > Kerry Brown > MS-MVP - Windows Desktop Experience: Systems Administration > http://www.vistahelp.ca/phpBB2/ > > > "Russ SBITS.Biz [SBS-MVP]" <russ(a)REMOVETHIS.sbits.biz> wrote in message > news:4754ABCD-5178-4E32-9D1E-B200707AEF16(a)microsoft.com... >> Another reason why I think OPENDNS.com ROCKS :) >> Free and "WORKS" :) >> Russ >> >> -- >> >> Russell Grover - SBITS.Biz [SBS-MVP] >> Microsoft Gold Certified Partner >> Microsoft Certified Small Business Specialist >> World Wide 24hr SBS Remote Support - http://www.SBITS.Biz >> 30% OFF Microsoft Online Services - >> http://www.microsoft-online-services.com/ >> >> >> >> "Ace Fekay [MCT]" <aceman(a)mvps.RemoveThisPart.org> wrote in message >> news:u32BfnchKHA.5568(a)TK2MSFTNGP02.phx.gbl... >>> "Chucko" <chucko(a)myrealbox.com> wrote in message >>> news:%239v7seahKHA.5380(a)TK2MSFTNGP06.phx.gbl... >>>> Yes, as it turns out, the folks at Spamhaus are aware of the problem. >>>> >>>> From their FAQ: >>>> >>>> Your DNSBL blocks nothing at all! >>>> >>>> Check what DNS resolvers you are using: If you are using a free "open >>>> DNS resolver" service such as Google Public DNS or Level3's public DNS >>>> servers to resolve your DNSBL requests, in most cases you will receive >>>> a "not listed" (NXDOMAIN) reply from Spamhaus' public DNSBL servers. >>>> Please use your own DNS servers when doing DNSBL queries to Spamhaus. >>>> >>> >>> Thank you for posting this info. I hope it helps others when they search >>> for this issue. >>> >>> :-) >>> >>> Acee >>> >>> >>>
From: Chucko on 27 Dec 2009 13:05
My Bad - It's not the "SmartCache" that you need to turn off, but the "Typo Corection (and NXDomain redirection)" that is found on the same Advanced Configuration page (3rd item from the top). "Chucko" <chucko(a)myrealbox.com> wrote in message news:utHdD0xhKHA.1824(a)TK2MSFTNGP04.phx.gbl... >I believe this behavior is configurable. You just have to turn off their >"SmartCache", under Dashboard, (select your network), Settings, Advanced >Settings. > > Once you turn it off, you'll see NXDOMAIN when appropriate. > > "Kerry Brown" <kerry(a)kdbNOSPAMsys-tems.c*a*m> wrote in message > news:O27j4JrhKHA.1456(a)TK2MSFTNGP06.phx.gbl... >> Yes, but it can cause some weird Exchange NDRs because it never returns >> NXDOMAIN. >> >> -- >> Kerry Brown >> MS-MVP - Windows Desktop Experience: Systems Administration >> http://www.vistahelp.ca/phpBB2/ >> >> >> "Russ SBITS.Biz [SBS-MVP]" <russ(a)REMOVETHIS.sbits.biz> wrote in message >> news:4754ABCD-5178-4E32-9D1E-B200707AEF16(a)microsoft.com... >>> Another reason why I think OPENDNS.com ROCKS :) >>> Free and "WORKS" :) >>> Russ >>> >>> -- >>> >>> Russell Grover - SBITS.Biz [SBS-MVP] >>> Microsoft Gold Certified Partner >>> Microsoft Certified Small Business Specialist >>> World Wide 24hr SBS Remote Support - http://www.SBITS.Biz >>> 30% OFF Microsoft Online Services - >>> http://www.microsoft-online-services.com/ >>> >>> >>> >>> "Ace Fekay [MCT]" <aceman(a)mvps.RemoveThisPart.org> wrote in message >>> news:u32BfnchKHA.5568(a)TK2MSFTNGP02.phx.gbl... >>>> "Chucko" <chucko(a)myrealbox.com> wrote in message >>>> news:%239v7seahKHA.5380(a)TK2MSFTNGP06.phx.gbl... >>>>> Yes, as it turns out, the folks at Spamhaus are aware of the problem. >>>>> >>>>> From their FAQ: >>>>> >>>>> Your DNSBL blocks nothing at all! >>>>> >>>>> Check what DNS resolvers you are using: If you are using a free "open >>>>> DNS resolver" service such as Google Public DNS or Level3's public DNS >>>>> servers to resolve your DNSBL requests, in most cases you will receive >>>>> a "not listed" (NXDOMAIN) reply from Spamhaus' public DNSBL servers. >>>>> Please use your own DNS servers when doing DNSBL queries to Spamhaus. >>>>> >>>> >>>> Thank you for posting this info. I hope it helps others when they >>>> search for this issue. >>>> >>>> :-) >>>> >>>> Acee >>>> >>>> >>>> > > |