Exchange 2010 Server not sending emails
My exchange server won't send emails externally. I can send them to other users in active directory and I can receive them, but they won't send out. I have the following DNS Records:
Internal DNS Server:
www Host (A) 65.254.250.109
mail Mail Exchanger (MX) 10.1.10.50
owa Mail Exchanger (MX) 10.1.10.50/OWA/
My external DNS from Network Solutions is:
www 7200 65.254.250.109
@ (None) 7200 76.116.24.242
* (All Others) 7200 65.254.250.109
mail.delranems.org 7200 76.116.24.242
And the External MX Mailserver DNS:
mail.delranems.org.(10) 7200
For my Organization Configuration -> Hub Transport -> Send Connectors, I have Default Send Connector Enabled. My FQDN under the General tab is mail.delranems.org. Address Space is Type = SMTP, Address = *, Cost = 1. Network Tab = User domain name system (DNS) "MX" records to route mail automatically. Source server, I have DES-DC1, Site is delranems.org/Configuratio
My firewall I have Port 25, 80, 443, 53 Open.
Any ideas why It isn't sending mail?
Internal DNS Server:
www Host (A) 65.254.250.109
mail Mail Exchanger (MX) 10.1.10.50
owa Mail Exchanger (MX) 10.1.10.50/OWA/
My external DNS from Network Solutions is:
www 7200 65.254.250.109
@ (None) 7200 76.116.24.242
* (All Others) 7200 65.254.250.109
mail.delranems.org 7200 76.116.24.242
And the External MX Mailserver DNS:
mail.delranems.org.(10) 7200
For my Organization Configuration -> Hub Transport -> Send Connectors, I have Default Send Connector Enabled. My FQDN under the General tab is mail.delranems.org. Address Space is Type = SMTP, Address = *, Cost = 1. Network Tab = User domain name system (DNS) "MX" records to route mail automatically. Source server, I have DES-DC1, Site is delranems.org/Configuratio
My firewall I have Port 25, 80, 443, 53 Open.
Any ideas why It isn't sending mail?
Jerod Sanderson
For your Organization Configuration -> Hub Transport ->Accepted Domains do you have delranems.org?
In the exchange does your mail go through any spam filter or direct to the internt.
Do get any NDR.
Check the queues
The Send connector an Internet send connector
Do get any NDR.
Check the queues
The Send connector an Internet send connector
Check on www.mxtoolbox.com and make sure you have a PTR / reverse DNS entry for your mail server
ASKER
Accepted domains are delranems.org.
I do get an NDR saying that the email wasn't sent yet and the message will continue to try and deliver for 19hours... blah blah with the time.
I'm not sure where to check the queues....
Organization Configuration -> Hub Transport -> Send Connectors I have Default Send Connector, and these Properties Settings:
Protocol logging level = None
FQDN = mail.delranems.org
Maximum Size = 10240
Address Space = Type=SMTP, Address=*, Cost=1 Scope send connector is not checked.
Network = Use Domain Name System (DNS) "MX" records to route mail automatically. Enable Domain Security is not checked.
Source Server = DES-DC1 Site = delranems.org/configuratio
This is my PTR:
PTR 76.116.24.242 c-76-116-24-242.hsd1.nj.co
reverse lookup smtp diag port scan blacklist
Reported by dns102.comcast.net on Monday, March 28, 2011 at 5:35:12 AM (GMT-5)
I do get an NDR saying that the email wasn't sent yet and the message will continue to try and deliver for 19hours... blah blah with the time.
I'm not sure where to check the queues....
Organization Configuration -> Hub Transport -> Send Connectors I have Default Send Connector, and these Properties Settings:
Protocol logging level = None
FQDN = mail.delranems.org
Maximum Size = 10240
Address Space = Type=SMTP, Address=*, Cost=1 Scope send connector is not checked.
Network = Use Domain Name System (DNS) "MX" records to route mail automatically. Enable Domain Security is not checked.
Source Server = DES-DC1 Site = delranems.org/configuratio
This is my PTR:
PTR 76.116.24.242 c-76-116-24-242.hsd1.nj.co
reverse lookup smtp diag port scan blacklist
Reported by dns102.comcast.net on Monday, March 28, 2011 at 5:35:12 AM (GMT-5)
ASKER
When I go to https://www.testexchangeconnectivity.com
When I do the outbound SMTP test, I get:
Checking Block List "SpamHaus Policy Block List (PBL)"
The IP address was found on block list.
Additional Details
The IP address 76.116.24.242 was found on the block list.
Status code: 10
Checking Block List "SORBS Block List"
The IP address was found on block list.
Additional Details
The IP address 76.116.24.242 was found on the block list.
Status code: 10
Performing Sender ID validation.
Sender ID validation was performed successfully.
Test Steps
Attempting to find the SPF record using a DNS TEXT record query.
ExRCA wasn't able to find the SPF record.
Additional Details
No records were found.
I tried to send an email to an @yahoo.com account, @comcast.net account. Neither of them were receiving them.
When I do the outbound SMTP test, I get:
Checking Block List "SpamHaus Policy Block List (PBL)"
The IP address was found on block list.
Additional Details
The IP address 76.116.24.242 was found on the block list.
Status code: 10
Checking Block List "SORBS Block List"
The IP address was found on block list.
Additional Details
The IP address 76.116.24.242 was found on the block list.
Status code: 10
Performing Sender ID validation.
Sender ID validation was performed successfully.
Test Steps
Attempting to find the SPF record using a DNS TEXT record query.
ExRCA wasn't able to find the SPF record.
Additional Details
No records were found.
I tried to send an email to an @yahoo.com account, @comcast.net account. Neither of them were receiving them.
ASKER
Wow, changing my send connect dns to smtp.comcast.net worked. I guess I have to use comcast dns lookup?
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ASKER
I will just use smtp.comcast.net. I can't see it making a big difference weather I use smtp.comcast.net or my own... right?