Jaime Campos
asked on
Cannot email to a specific Domain from my Exchange Server
Hello,
We are continuing to have problems wherein my domain (RAPADOCS.COM) is bouncing messages from the HEALTHTEXAS.ORG domain. I can send email to that domain, however they cannot send to me. I'm not sure where the the problem appears to be and I've checked our SONIC firewall. Maybe I'm missing something and it's not allowing email from HEALTHTEXAS.ORG because my Sonic Firewall refuses connections from email servers whose inbound and outbound port addresses do not match. I'm not sure if this is the issue and I'm not sure how to troubleshoot this issue.
Thanks,
nimdatx
We are continuing to have problems wherein my domain (RAPADOCS.COM) is bouncing messages from the HEALTHTEXAS.ORG domain. I can send email to that domain, however they cannot send to me. I'm not sure where the the problem appears to be and I've checked our SONIC firewall. Maybe I'm missing something and it's not allowing email from HEALTHTEXAS.ORG because my Sonic Firewall refuses connections from email servers whose inbound and outbound port addresses do not match. I'm not sure if this is the issue and I'm not sure how to troubleshoot this issue.
Thanks,
nimdatx
Please ask them to send me a test message - they are hiding behind a Barracuda spam appliance and they might not be configured correctly, only we won't know because of this.
My address is alan @ it-eye.co.uk and my anti-spam software will tell me all I need to know about how their server is configured.
Many thanks
Alan
My address is alan @ it-eye.co.uk and my anti-spam software will tell me all I need to know about how their server is configured.
Many thanks
Alan
ASKER
I sent you a test from my end. Maybe you can see something on my side. I'll see if they can send to you as well.
I readed your document and performed your steps.
What is my IP off Exchange Server
12.49.168.68
Reverse DNS Lookup
Server: 208.82.183.131
Address: 208.82.183.131#53
Non-authoritative answer:
Name: rapadocs.com
Address: 24.173.46.250
Blacklist
Checking 12.49.168.68 against 103 known blacklists...
Listed 0 times with 2 timeouts.
All seemed to be ok.
Web Reputation Score:
Neutral
Why is the reputation Neutral?
Your IP address or domain is within acceptable parameters.
Extended Whois
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
WHOIS Lookup
Owner Renal Associates, P.A.
Status Locked
Created 2006-11-17
Changed 2009-09-23
Expires 2016-11-17
Registrar ENOM, INC.
Admin Email nawils@sbcglobal.net
Tech Email nawils@sbcglobal.net
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Top Level Domains Available
.com .net .org .biz .info .us
SSL Certificate
Valid? ERROR
Created 2009-05-16 11:57:15 GMT
Expires 2011-05-16 11:57:15 GMT
Issued To Totalpcsol.net
San Antonio, US
Issued By Microsoft Internet Information Server
THANKS SO MUCH for checking.
nimdatx
I readed your document and performed your steps.
What is my IP off Exchange Server
12.49.168.68
Reverse DNS Lookup
Server: 208.82.183.131
Address: 208.82.183.131#53
Non-authoritative answer:
Name: rapadocs.com
Address: 24.173.46.250
Blacklist
Checking 12.49.168.68 against 103 known blacklists...
Listed 0 times with 2 timeouts.
All seemed to be ok.
Web Reputation Score:
Neutral
Why is the reputation Neutral?
Your IP address or domain is within acceptable parameters.
Extended Whois
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
WHOIS Lookup
Owner Renal Associates, P.A.
Status Locked
Created 2006-11-17
Changed 2009-09-23
Expires 2016-11-17
Registrar ENOM, INC.
Admin Email nawils@sbcglobal.net
Tech Email nawils@sbcglobal.net
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Invalid AWS Request!
Top Level Domains Available
.com .net .org .biz .info .us
SSL Certificate
Valid? ERROR
Created 2009-05-16 11:57:15 GMT
Expires 2011-05-16 11:57:15 GMT
Issued To Totalpcsol.net
San Antonio, US
Issued By Microsoft Internet Information Server
THANKS SO MUCH for checking.
nimdatx
Your email came through fine - which suggests you are configured happily. I'll just check my server and report back in a sec.
Either way - that won't do much for testing your inbound mail-flow. Usually problems like this are down to poor configuration at the sending end.
Either way - that won't do much for testing your inbound mail-flow. Usually problems like this are down to poor configuration at the sending end.
Yep - came through cleanly. Your config looks fine.
ASKER
My Information
IP off Exchange Server
12.49.168.68
Reverse DNS Lookup
Server: 208.82.183.131
Address: 208.82.183.131#53
Non-authoritative answer:
Name: rapadocs.com
Address: 24.173.46.250 <- Isn't this IP supposed to be 12.49.168.68, which comes up as my IP when I run MX lookup? Is that address supposed to have RDNS or my MX IP 12.49.168.68?
Healthtexas information
RDNS: Healthtexas.org
Server: 208.82.183.131
Address: 208.82.183.131#53
Non-authoritative answer:
Name: Healthtexas.org
Address: 168.143.83.194
MX Record: Healthtexas.org
mail.healthtexas.org 76.195.29.204
DNS Lookup: Healthtexas.org
healthtexas.org 168.143.83.194
IP off Exchange Server
12.49.168.68
Reverse DNS Lookup
Server: 208.82.183.131
Address: 208.82.183.131#53
Non-authoritative answer:
Name: rapadocs.com
Address: 24.173.46.250 <- Isn't this IP supposed to be 12.49.168.68, which comes up as my IP when I run MX lookup? Is that address supposed to have RDNS or my MX IP 12.49.168.68?
Healthtexas information
RDNS: Healthtexas.org
Server: 208.82.183.131
Address: 208.82.183.131#53
Non-authoritative answer:
Name: Healthtexas.org
Address: 168.143.83.194
MX Record: Healthtexas.org
mail.healthtexas.org 76.195.29.204
DNS Lookup: Healthtexas.org
healthtexas.org 168.143.83.194
The IP Address you connected to my server from is 12.49.168.68 and your EHLO Domain Name is rapamail.rapadocs.com - Reverse DNS on that IP resolves as rapamail.rapadocs.com
The MXTOOLBOX test for DNS Report doesn't work on Exchange 2007 / 2010 because they connect to your RECEIVE Connector not your SEND connector and you can receive and send on differnet IP Addresses, so you can safely ignore that test.
Your side is good to go and looks very RFC compliant to me. Can't say the same thing for the other end without them sending me a test message or knowing more info.
The MXTOOLBOX test for DNS Report doesn't work on Exchange 2007 / 2010 because they connect to your RECEIVE Connector not your SEND connector and you can receive and send on differnet IP Addresses, so you can safely ignore that test.
Your side is good to go and looks very RFC compliant to me. Can't say the same thing for the other end without them sending me a test message or knowing more info.
ASKER
alanhardisty,
I'm waiting for a callback from Senior System Admin from Health Texas Organization. Now, meanwhile I've done all your recommended testing with your wonderful article, however is there anything else I can do that you would do once you recieve there email. Can you explain how you check it from your end, so maybe I can learn how to further my email troubleshooting skills.
Thanks,
Jaime Campos
I'm waiting for a callback from Senior System Admin from Health Texas Organization. Now, meanwhile I've done all your recommended testing with your wonderful article, however is there anything else I can do that you would do once you recieve there email. Can you explain how you check it from your end, so maybe I can learn how to further my email troubleshooting skills.
Thanks,
Jaime Campos
ASKER CERTIFIED SOLUTION
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ASKER
Thanks so much for all your help.
https://www.experts-exchange.com/Software/Server_Software/Email_Servers/A_2427-Problems-sending-mail-to-one-or-more-external-domains.html