By using smtpdiag tool, I get the following message Searching for Exchange external DNS settings. Computer name is 0000. Checking SOA for lists.agpn.com. Checking external DNS servers. Checking internal DNS servers. SOA serial number match: Passed. Checking local domain records. Checking MX records using TCP: nps.org.au. Checking MX records using UDP: nps.org.au. Both TCP and UDP queries succeeded. Local DNS test passed. Checking remote domain records. Checking MX records using TCP: lists.agpn.com. Checking MX records using UDP: lists.agpn.com. Both TCP and UDP queries succeeded. Remote DNS test passed. Checking MX servers listed for xxx@lists.agpn.com. Connecting to lists.agpn.com [216.8.179.23] on port 25. Failed to receive data. Error: 10054 Error: Expected "220". Failed to get a response from the server. Failed to submit mail to lists.agpn.com. Interestingly, I have similar result for other addresses, even though I can send/receive from some addresses but Cannot for some. Is not it, if I have any internal problem, I will not be able to send/receive email from/to any addresses? -------------------------------------------------------------------------------Also--------------------------- The email address which didn't work has the following undeliverable message --------------- Delivery has failed to these recipients or distribution lists: 'xxx@lists.agpn.com.au'An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator. The following organization rejected your message: [203.37.88.45]. _____ Sent by Microsoft Exchange Server 2007 Diagnostic information for administrators: Generating server: server-mail.nps.qum xxx@lists.agpn.com.au[203.37.88.45] #557 Access denied <xxx@lists.agpn.com.au> for user <xxx@nps.org.au> ## Original message headers: Received: from server-mail.nps.qum ([10.1.50.23]) by server-mail.nps.qum ([10.1.50.23]) with mapi; Wed, 14 Apr 2010 13:11:53 +1000From: xxxxxxx<xxxx@nps.org.au>To: "'xxx@lists.agpn.com.au'" <xxx@lists.agpn.com.au>Date: Wed, 14 Apr 2010 13:11:53 +1000Subject: Please ignore. this is a test from NPS Thread-Topic: Please ignore. this is a test from NPS Thread-Index: AcrbgEbUuhcHN1XfT/yr4xflUVCTYQ==Message-ID: <488882C5775B70449E2F12D1D2751C3B84AAF514B2@server-mail.nps.qum>Accept-Language: en-USContent-Language: en-USX-MS-Has-Attach:X-MS-TNEF-Correlator:acceptlanguage: en-USContent-Type: multipart/alternative; boundary="_000_488882C5775B70449E2F12D1D2751C3B84AAF514B2servermailnps_"MIME-Version: 1.0

On Wed, 14 Apr 2010 02:03:33 +0000, mkhan100 wrote:>By using smtpdiag tool, I get the following message >>Searching for Exchange external DNS settings. >Checking MX servers listed for xxx@lists.agpn.com. >>Connecting to lists.agpn.com [216.8.179.23] on port 25. >Failed to receive data. Error: 10054 >>Error: Expected "220". Failed to get a response from the server. [ snip ]If it's any consolation, I don't get any response from that IPaddress, either. But since there's no MX record for that domain Idon't find that surprising. The "A" record for that name probablyisn't a SMTP server. What it IS, is a web server. [ snip ]>'xxx@lists.agpn.com.au'An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator. That's a different domain, but there IS a SMTP server at the IPaddress 203.37.88.45. [ snip ]>xxx@lists.agpn.com.au[203.37.88.45] #557 Access denied <xxx@lists.agpn.com.au> for user <xxx@nps.org.au> ## And the reason is that you've been denied permission (of some sort) bythat server.---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

Thanks Rich, Question 1: I knew that I was denied permission but how do I resolve it? My domain is not a blacklisted one. What to do now? Question 2: I have similier output from smtpdiag from many addresses, even though email communications between us, and have NO Problem. Why? Checking SOA for macquaire.com.Checking external DNS servers.Checking internal DNS servers.SOA serial number match: Passed. Checking local domain records.Checking MX records using TCP: nps.org.au.Checking MX records using UDP: nps.org.au.Both TCP and UDP queries succeeded. Local DNS test passed. Checking remote domain records.Checking MX records using TCP: macquaire.com.Checking MX records using UDP: macquaire.com.Both TCP and UDP queries succeeded. Remote DNS test passed. Checking MX servers listed for xxx@macquaire.com.Connecting to macquaire.com [203.27.227.23] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to macquaire.com If possible, give me steps to do to resolve these. Thanks in advance.

On Wed, 14 Apr 2010 21:53:30 +0000, mkhan100 wrote:>Question 1: I knew that I was denied permission but how do I resolve it? My domain is not a blacklisted one. What to do now?You conact the admin for the system and ask why you're deniedpermission. If you can't send them e-mail from your system then useanother e-mail system (gmail, hotmail, etc.).>Question 2: I have similier output from smtpdiag from many addresses, even though email communications between us, and have NO Problem. Why?>>Checking SOA for macquaire.com.Checking external DNS servers.Checking internal DNS servers.SOA serial number match: Passed.>>Checking local domain records.Checking MX records using TCP: nps.org.au.Checking MX records using UDP: nps.org.au.Both TCP and UDP queries succeeded. Local DNS test passed.>>Checking remote domain records.Checking MX records using TCP: macquaire.com.Checking MX records using UDP: macquaire.com.Both TCP and UDP queries succeeded. Remote DNS test passed.>>Checking MX servers listed for xxx@macquaire.com.Connecting to macquaire.com [203.27.227.23] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to macquaire.comI didn't find any MX records for macquaire.com (not even if I querytheir DNS directly), and I can't connect on port 25 to 203.27.227.23.There's no web site at that address, either. A quick scan of their website didn't turn up any e-mail addresses, either.---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

Thanks for the answer for Q1, which I have already resolved.But I am really confused on your Q2 answer. If there is NO MX record for macquarie.com nor you can't query DNS directly and your say No Website at that address,a. What does these mean?b. How I can successfully send/receive email from that address? http://www.macquarie.com/com/index.htm c. Can you please give me some lights. Is there any problem in my site, you think? If yes, what these might be?d. how do I resolve that?I highly appriciate your help

On Thu, 15 Apr 2010 03:12:26 +0000, mkhan100 wrote:>>>Thanks for the answer for Q1, which I have already resolved.>>But I am really confused on your Q2 answer. If there is NO MX record for macquarie.com nor you can't query DNS directlyI didn't say I can't query their DNS. I said I couldn't find a MXrecord even if I used their DNS name server. However, today you spelled the domain name as "macquarie.com" --yesterday you spelled it "macquaire.com". For the "macquarie.com" namethere's MX records.Non-authoritative answer:macquarie.com MX preference = 10, mail exchanger =cluster9.us.messagelabs.commacquarie.com MX preference = 20, mail exchanger =cluster9a.us.messagelabs.comcluster9.us.messagelabs.com internet address = 216.82.254.3cluster9.us.messagelabs.com internet address = 216.82.254.35cluster9.us.messagelabs.com internet address = 216.82.254.51cluster9.us.messagelabs.com internet address = 216.82.254.227cluster9.us.messagelabs.com internet address = 216.82.254.243cluster9.us.messagelabs.com internet address = 216.82.242.19cluster9.us.messagelabs.com internet address = 216.82.249.19cluster9.us.messagelabs.com internet address = 216.82.249.35cluster9.us.messagelabs.com internet address = 216.82.249.51cluster9a.us.messagelabs.com internet address = 216.82.254.35cluster9a.us.messagelabs.com internet address = 216.82.254.51cluster9a.us.messagelabs.com internet address = 216.82.254.227cluster9a.us.messagelabs.com internet address = 216.82.254.243cluster9a.us.messagelabs.com internet address = 85.158.136.170cluster9a.us.messagelabs.com internet address = 85.158.137.231cluster9a.us.messagelabs.com internet address = 216.82.248.44cluster9a.us.messagelabs.com internet address = 216.82.248.45cluster9a.us.messagelabs.com internet address = 216.82.249.19cluster9a.us.messagelabs.com internet address = 216.82.249.35cluster9a.us.messagelabs.com internet address = 216.82.249.51cluster9a.us.messagelabs.com internet address = 216.82.254.3>and your say No Website at that address,If you use http://203.27.227.23 you'll find a web site, but all itsays is "Web Hosting has not been setup for this domain name".>a. What does these mean?>>b. How I can successfully send/receive email from that address? http://www.macquarie.com/com/index.htmFROM there? I don't know. That's a URL. >c. Can you please give me some lights. Is there any problem in my site, you think? If yes, what these might be?Verify the spelling of the domain name. Then rerun the smtpdiag toolusing the correct domain name.>d. how do I resolve that?Check your spelling.---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

Extremely Sorry for my spelling mistake.Now I use correct address in smtpDiag and found the following errors------ Checking external DNS servers.Checking internal DNS servers.SOA serial number match: Passed.Checking local domain records.Checking MX records using TCP: nps.org.au.Checking MX records using UDP: nps.org.au.Both TCP and UDP queries succeeded. Local DNS test passed.Checking remote domain records.Checking MX records using TCP: macquarie.com.Checking MX records using UDP: macquarie.com.Both TCP and UDP queries succeeded. Remote DNS test passed.Checking MX servers listed for xxx@macquarie.com.Connecting to cluster9.us.messagelabs.com [216.82.254.243] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.254.227] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.254.51] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.254.35] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.254.3] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.249.51] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.249.35] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.249.19] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9.us.messagelabs.com [216.82.242.19] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.249.51] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.249.35] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.249.19] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.248.45] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.248.44] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [85.158.137.231] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [85.158.136.170] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.254.243] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.254.227] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.254.51] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.254.35] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com.Connecting to cluster9a.us.messagelabs.com [216.82.254.3] on port 25.Failed to receive data. Error: 10054Error: Expected "220". Failed to get a response from the server.Failed to submit mail to cluster9a.us.messagelabs.com. please explain

Hi mkhan,Sure, agree with Rich, kindly suggest that you confirm the test domain correct input and has MX record.You could use here.Regards!gavin

On Fri, 16 Apr 2010 05:11:28 +0000, mkhan100 wrote:>>>Extremely Sorry for my spelling mistake.>>Now I use correct address in smtpDiag and found the following errorsFor you to fail to connect to that many different SMTP servers therehas to be some kind of network problem. Exchange just uses theservices provided by the O/S.Can you tracert to any of the IP addresses?---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

I have lots of Request timed out when I use the address (tracert 216.82.254.3). Tracing route to mail172.messagelabs.com [216.82.254.3] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 10.1.57.5 2 1 ms <1 ms 1 ms 10.1.50.5 3 14 ms 22 ms 22 ms 172.30.220.77 4 24 ms 23 ms 27 ms 10.1.52.254 5 11 ms 23 ms 29 ms 202.86.117.209 6 20 ms 26 ms 23 ms 100.3.11.61 7 30 ms 24 ms 20 ms 202.92.64.2 8 25 ms 25 ms 22 ms 202.92.64.1 9 17 ms 23 ms 23 ms ge1-2.sclardist02.aapt.net.au [202.10.13.30] 10 23 ms 23 ms 24 ms te3-1.sclarbrdr01.aapt.net.au [202.10.14.5] 11 23 ms 25 ms 26 ms xe7-0-0-320.sybr5.global-gateway.net.nz [202.50. 238.213] 12 * * * Request timed out. 13 * * * Request timed out. 14 * * * Request timed out. 15 175 ms 161 ms 162 ms sl-st20-la-8-1-0.sprintlink.net [160.81.22.129] 16 186 ms 186 ms 185 ms 144.232.9.18 17 195 ms 200 ms 183 ms los-core-01.inet.qwest.net [205.171.32.9] 18 * * * Request timed out. 19 228 ms 222 ms 216 ms 204.133.176.66 20 231 ms 226 ms 214 ms v100.r.t172.messagelabs.net [216.82.252.83] 21 * * * Request timed out. 22 * * * Request timed out. 23 * * * Request timed out. 24 * * * Request timed out. 25 * * * Request timed out. 26 * * * Request timed out. 27 * * * Request timed out. 28 * * * Request timed out. 29 * * * Request timed out. 30 * * * Request timed out. Trace complete.

On Mon, 19 Apr 2010 01:51:57 +0000, mkhan100 wrote:>>>I have lots of Request timed out when I use the address (tracert 216.82.254.3). Those are just likely to be devices that don't respond to an ICMP ECHOrequest.If the network is reachable but you cannot connect to port 25 it maybe that your IP (or network) is blocked. Have you verified that thisis (or is not) the case? Start here:http://www.mxtoolbox.com/blacklists.aspx---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

I checked that address and found they are black listed. Does it mean that email communication is still possible but no gurentee. And that is why I can still send/receive email from someone@macquarie.com blacklist:216.82.254.3 blacklist We notice you are on a blacklist. Click here for some suggestions Checking 216.82.254.3 against 105 known blacklists... Listed 1 times with 1 timeouts. Reported by mxtoolbox.com on Sunday, April 18, 2010 at 9:38:31 PM (GMT-5) (History) When I use just macquarie.com it shows that it is NOT a backlisted address. SuperTool ^Beta Command: <input id="ctl00_ContentPlaceHolder1_txtToolInput" class="tools_lookup_textbox" name="ctl00$ContentPlaceHolder1$txtToolInput" type="text" value="blacklist:macquarie.com" tabindex="1" /> <input id="ctl00_ContentPlaceHolder1_btnAction" class="tools_lookup_button" onclick="javascript:__doPostBack('ctl00$ContentPlaceHolder1$btnAction','')" name="ctl00$ContentPlaceHolder1$btnAction" type="button" value="Lookup" tabindex="1" /> blacklist:macquarie.com blacklist macquarie.com was resolved to 203.210.65.6. Checking macquarie.com against 105 known blacklists... Listed 0 times with 3 timeouts. Blacklist Status Reason TTL ResponseTime AHBL OK 31 Backscatter.org OK 31 BARRACUDA OK 47 BURNT-TECH OK 62 CASA-CBL OK 203 CASA-CBL+ OK 47 CASA-CDL OK 203 CBL OK 31 CSMA OK 47 CYBERLOGIC OK 47 CYMRU-BOGONS OK 47 DAN-TOR OK 125 DAN-TOREXIT OK 125 DEADBEEF OK 47 DNSBLINFO OK 47 DUINV OK 156 DULRU OK 172 FABELSOURCES OK 125 FIVETEN OK 125 GIRL OK 125 GRIP OK 125 HIL OK 125 HIL OK 140 HILLI OK 203 ICMFORBIDDEN OK 203 IMP-SPAM OK 343 IMP-WORM OK 328 INTERSIL OK 203 ivmSIP OK 203 ivmSIP/24 OK 203 KEMPTBL OK 203 KUNDENSERVER OK 203 LASHBACK OK 203 LNSGBLOCK OK 203 LNSGBULK OK 203 LNSGDUL OK 203 LNSGMULTI OK 203 LNSGOR OK 203 LNSGSRC OK 203 MSRBL-Combined OK 203 MSRBL-Images OK 203 MSRBL-Phising OK 203 MSRBL-Spam OK 203 MSRBL-Viruses OK 203 NERD OK 218 NETHERRELAYS OK 203 NETHERUNSURE OK 203 NIXSPAM OK 203 NJABL OK 203 NJABLDUL OK 203 NJABLFORMMAIL OK 218 NJABLMULTI OK 218 NJABLPROXIES OK 218 NJABLSOURCES OK 218 NLKUNBLACKLIST OK 218 NLKUNWHITELIST OK 218 NOFALSEPOSITIVE OK 218 NOMOREFUNN OK 218 ORID OK 343 ORVEDB OK 234 OSPAM OK 218 PDL OK 218 PSBL OK 218 RANGERSBL OK 234 RATS-Dyna OK 218 RATS-NoPtr OK 234 RATS-Spam OK 234 RBL-JP OK 234 REDHAWK OK 234 RRBL OK 234 RSBL OK 234 SCHULTE OK 234 SDERB OK 234 SENDERBASE OK 234 SERVICESNET OK 234 SOLID OK 234 SORBS-BLOCK OK 234 SORBS-DUHL OK 234 SORBS-HTTP OK 234 SORBS-MISC OK 234 SORBS-SMTP OK 234 SORBS-SOCKS OK 234 SORBS-SPAM OK 234 SORBS-WEB OK 234 SORBS-ZOMBIE OK 234 SPAMCANNIBAL OK 234 SPAMCOP OK 234 Spamhaus-ZEN OK 234 SPAMSOURCES OK 234 SPEWS1 OK 234 SPEWS2 OK 234 SWINOG OK 234 TECHNOVISION OK 234 Tiopan OK 234 TRIUMF OK 234 UCEPROTECTL1 OK 234 UCEPROTECTL2 OK 234 UCEPROTECTL3 OK 234 VIRBL OK 234 WPBL OK 234 WSFF OK 234 ZONEEDIT OK 234 ANT TIMEOUT 0 EMAILBASURA TIMEOUT 0 SPAMRBL TIMEOUT 0 dns lookup ns lookup mx lookup whois lookup Reported by mxtoolbox.com on Sunday, April 18, 2010 at 9:49:14 PM (GMT-5) (History) Blacklist Status Reason TTL ResponseTime Backscatter.org LISTED Sorry 216.82.254.3 is blacklisted at Detail Return codes were: 127.0.0.2 1965 109 AHBL OK 0 ANT OK 0 BARRACUDA OK 0 BURNT-TECH OK 0 CASA-CBL OK 0 CASA-CBL+ OK 0 CASA-CDL OK 0 CBL OK 0 CSMA OK 0 CYBERLOGIC OK 47 CYMRU-BOGONS OK 0 DAN-TOR OK 0 DAN-TOREXIT OK 0 DEADBEEF OK 16 DNSBLINFO OK 16 DUINV OK 16 DULRU OK 16 EMAILBASURA OK 16 FABELSOURCES OK 16 FIVETEN OK 62 GIRL OK 16 GRIP OK 16 HIL OK 16 HIL OK 31 HILLI OK 16 ICMFORBIDDEN OK 16 IMP-SPAM OK 16 IMP-WORM OK 31 INTERSIL OK 31 ivmSIP OK 31 ivmSIP/24 OK 31 KEMPTBL OK 62 KUNDENSERVER OK 140 LASHBACK OK 47 LNSGBLOCK OK 47 LNSGBULK OK 47 LNSGDUL OK 47 LNSGMULTI OK 47 LNSGOR OK 47 LNSGSRC OK 47 MSRBL-Combined OK 47 MSRBL-Images OK 47 MSRBL-Phising OK 47 MSRBL-Spam OK 47 MSRBL-Viruses OK 47 NERD OK 47 NETHERRELAYS OK 47 NETHERUNSURE OK 62 NIXSPAM OK 140 NJABL OK 62 NJABLDUL OK 62 NJABLFORMMAIL OK 62 NJABLMULTI OK 62 NJABLPROXIES OK 62 NJABLSOURCES OK 62 NLKUNBLACKLIST OK 62 NLKUNWHITELIST OK 62 NOFALSEPOSITIVE OK 62 NOMOREFUNN OK 62 ORID OK 62 ORVEDB OK 62 OSPAM OK 62 PDL OK 62 PSBL OK 62 RANGERSBL OK 62 RATS-Dyna OK 62 RATS-NoPtr OK 62 RATS-Spam OK 94 RBL-JP OK 62 REDHAWK OK 62 RRBL OK 62 RSBL OK 62 SCHULTE OK 62 SDERB OK 62 SENDERBASE OK 78 SERVICESNET OK 78 SOLID OK 78 SORBS-BLOCK OK 78 SORBS-DUHL OK 78 SORBS-HTTP OK 78 SORBS-MISC OK 78 SORBS-SMTP OK 78 SORBS-SOCKS OK 78 SORBS-SPAM OK 78 SORBS-WEB OK 78 SORBS-ZOMBIE OK 78 SPAMCANNIBAL OK 78 SPAMCOP OK 78 Spamhaus-ZEN OK 125 SPAMSOURCES OK 109 SPEWS1 OK 109 SPEWS2 OK 109 SWINOG OK 109 TECHNOVISION OK 109 Tiopan OK 109 TRIUMF OK 109 UCEPROTECTL1 OK 109 UCEPROTECTL2 OK 109 UCEPROTECTL3 OK 109 VIRBL OK 109 WPBL OK 109 WSFF OK 109 ZONEEDIT OK 109 SPAMRBL TIMEOUT 0 reverse lookup smtp diag port scan blacklist

On Mon, 19 Apr 2010 02:42:39 +0000, mkhan100 wrote:>I checked that address and found they are black listed. That's not a good thing.>Does it mean that email communication is still possible but no gurentee. That's correct. It depends on which DNSBL lists your IP address andwhether or not the organization you're sending to uses that DNSBL.There's never any guaranty the you'll be able to send e-maileverywhere all the time. Nor is there any way to know if there areDNSBLs you don't know about, including the ones that are privatelymaintained, or those that react to too much junk mail, too many unknowrecipients, etc. by dynamically blocking an IP address for smepredetermined amount of time.>And that is why I can still send/receive email from someone@macquarie.com See above. Maybe they don't use any DNSBL that lists your IP address.> blacklist:216.82.254.3 blacklistThis is an IP address that belongs to MessageLabs. Check YOUR IPaddress, not someone else's!> We notice you are on a blacklist. Click here for some suggestions >Checking 216.82.254.3 against 105 known blacklists... Listed 1 times with 1 timeouts. Reported by mxtoolbox.com on Sunday, April 18, 2010 at 9:38:31 PM (GMT-5) (History)>When I use just macquarie.com it shows that it is NOT a backlisted address. That name resolves to a different IP address: 203.210.65.6. Is thatYOUR IP address?Why do you care if the recipient's SMTP server is in a DNSBL? You onlyneed to concern yourself with your IP address(es).---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP

I am expressing my gratitude to Rich Matheisen for his patient and expert answers Your contributions make TechNet Forums valuable Thank you very much.