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Can't send mail externally

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Can't send mail externally - 3.May2005 3:49:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
Hello - very frustrated chica here. I have set up SBS 2003 for a small, local company. They purchased NetGear Firewall/Router as well. I set up Exchange, and they are able send/receive internally with no problem. They can RECEIVE external mail, but they cannot SEND external mail. External mail sits in the queue waiting "for response from remote server".

Now, I have forwarders set up in DNS. The forwarders point to the DNS Servers provided by the ISP. In event viewer I continue to get 7063 errors stating the forwarder IP Address does not allow recursive queries. I have a ticket in with the ISP, but in the meantime I wanted to check with the Board here and see if I have missed any steps.

On my SMTP virtual server, under Authentication, all three boxes are checked. Under Relay, I have "allow all computers that successfully authenticate to relay, regardless of list" checked.

Oh, and port 25 is open on the router. Have I missed something on my end, before I chew out the ISP?
Post #: 1
RE: Can't send mail externally - 3.May2005 4:15:00 PM   
Guest
I'm having the same problem for days now. This is so frustrating. I have resorted to connecting all outlook clients directly to the ISP's email server. Lucky we are not so big

(in reply to tmercado)
  Post #: 2
RE: Can't send mail externally - 3.May2005 4:17:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
Wow...that stinks. There has to be something missing or something that I have overlooked. I am so frustrated....

(in reply to tmercado)
Post #: 3
RE: Can't send mail externally - 3.May2005 5:19:00 PM   
semorefred

 

Posts: 176
Joined: 9.Nov.2004
From: Charlotte
Status: offline
change your forwarders in DNS to 4.2.2.1 and 4.2.2.2 then restart DNS service and flush/register dns via cmd prompt

try and telnet outbound
open cmd prompt and type

telnet mail1.microsoft.com 25

u should get a banner back if not then let me know

make sure ur smtp connector has an address space of * and not something else....

(in reply to tmercado)
Post #: 4
RE: Can't send mail externally - 3.May2005 6:54:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
Thank you! I was able to get a banner after completing the steps you submitted. However, I still see messages in the queue. I'm playing with it however. Get back to you in a few minutes.

(in reply to tmercado)
Post #: 5
RE: Can't send mail externally - 3.May2005 7:09:00 PM   
semorefred

 

Posts: 176
Joined: 9.Nov.2004
From: Charlotte
Status: offline
is the mail in retry or active state?

(in reply to tmercado)
Post #: 6
RE: Can't send mail externally - 3.May2005 8:02:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
The mail is in Retry state. I right click and select "Force Connection" but it eventually returns to Retry state after some time.

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Post #: 7
RE: Can't send mail externally - 3.May2005 8:16:00 PM   
semorefred

 

Posts: 176
Joined: 9.Nov.2004
From: Charlotte
Status: offline
what kind of AV are u runnin..if symantec 9.0 uncheck the internet email auto-protect if installed...

also enable message tracking and let us know where the message is hanging at..

also do a nslookup as follows

type in cmd promot
nslookup
set q=mx
microsoft.com

u should see the mx records..if not u have a DNS issue.

let me know

(in reply to tmercado)
Post #: 8
RE: Can't send mail externally - 3.May2005 8:17:00 PM   
semorefred

 

Posts: 176
Joined: 9.Nov.2004
From: Charlotte
Status: offline
also make sure you dont have external dns configured on the VS.

try to relay off your ISP to...

get there relay address from them and see if that works... they may be blocking ur outbound 25...but if they are blocking it u can still relay off them... try the above first then try to relay off ur ISP

(in reply to tmercado)
Post #: 9
RE: Can't send mail externally - 4.May2005 12:51:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
At this time there is no Anti-Virus solution. I am able to see the MX records for microsoft. And, I don't believe I have eternal DNS configured on the SMTP Virtual Server. I have another ticket in with my ISP, but they have assured me during previous conversations that they do not have port 25 blocked. I will be calling the ISP (again) this morning, and I will update you on what their response is.

Thank you again for all your help.

(in reply to tmercado)
Post #: 10
RE: Can't send mail externally - 4.May2005 2:15:00 PM   
semorefred

 

Posts: 176
Joined: 9.Nov.2004
From: Charlotte
Status: offline
ok see if you can get there address to relay mail off of them

(in reply to tmercado)
Post #: 11
RE: Can't send mail externally - 5.May2005 10:21:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
Below is a snippet of the SMTP log file. This series of commands is repeated throughout the entire log file:

06:17:25 210.153.205.96 EHLO - 250
06:17:25 210.153.205.96 MAIL - 250
06:17:25 210.153.205.96 RCPT - 250
06:17:28 210.153.205.96 DATA - 250
06:17:28 210.153.205.96 QUIT - 240

It's TRYING, but failing...Ugh.

(in reply to tmercado)
Post #: 12
RE: Can't send mail externally - 5.May2005 10:47:00 PM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
Also, in message tracking, the message ends at "Queued for Remote Delivery"

It goes through the Advanced Queue, the catagorizer, then it is queued for remote delivery. A few days later, an NDR report is created. I think I will shorten the length of time before an NDR is created. Anyway, in the queue, when I click on a message in RETRY state, it says "The remote server did not respond to a connection attempt."

[Confused]

(in reply to tmercado)
Post #: 13
RE: Can't send mail externally - 6.May2005 1:13:00 AM   
tmercado

 

Posts: 17
Joined: 27.Apr.2005
From: Allentown, PA
Status: offline
Problem SOLVED! Remember when you said to make sure I do not have external DNS configured on the VS? Oops. I did. I removed the entries, and BAM! All is well and hopping! Thank you so much for your help! [Big Grin]

(in reply to tmercado)
Post #: 14
RE: Can't send mail externally - 6.May2005 2:09:00 PM   
semorefred

 

Posts: 176
Joined: 9.Nov.2004
From: Charlotte
Status: offline
cool glad to see it working

(in reply to tmercado)
Post #: 15
RE: Can't send mail externally - 11.May2005 11:51:00 AM   
hemant53

 

Posts: 1
Joined: 11.May2005
From: Oman
Status: offline
I have a same problem and no external DNS server configured, I have diabled the AV feature for Real time checking for internet , Exchange and File server but still the problem persists help me. If i restart the server it works for few days may be 3 or 4 days and then it stops by itself the mails are stuck in the queue.

(in reply to tmercado)
Post #: 16

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