Exchange 2007 (Network Steve Forum)

Exchange 2007

Hello All,

I have Exchange 2007 --- One Hub & CAS and another mail box server. Plast 7 years it never given me any trouble. Past two weeks mails are not going to outside domain and it is in the queue. I am able to receive and even able to send/receive within the domain.

I checked SMTP send connector, space, re-installed Hub & Cas, Disable firewall, AV etc...

After doing all these also, it is in the same situation.

Can someone help me?

Tonio

July 22nd, 2015 6:44am

Hello All,

I have Exchange 2007 --- One Hub & CAS and another mail box server. Plast 7 years it never given me any trouble. Past two weeks mails are not going to outside domain and it is in the queue. I am able to receive and even able to send/receive within the domain.

I checked SMTP send connector, space, re-installed Hub & Cas, Disable firewall, AV etc...

After doing all these also, it is in the same situation.

Can someone help me?

Tonio

If you drill into the queue what is the delay reason for the message?

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July 22nd, 2015 8:57am

Hello

What is the reason for delay in message. If the message is for a particular domain like yahoo.com etc... then check if you are able to nslookup yahoo.com and set the query to mx and check if mx record resolved from your hub & CAS server.

Open Command prompt and type below command

c:\nslookup

>yahoo.com

>set q=mx

>yahoo.com

July 22nd, 2015 10:05am

Here is the reply

Default Server: hybsdc.xxxxxxxx.com
Address: 192.168.2.3

> yahoo.com
Server: hybsdc.xxxxxxxx.com
Address: 192.168.2.3

Non-authoritative answer:
Name: yahoo.com
Addresses: 2001:4998:58:c02::a9
2001:4998:44:204::a7
2001:4998:c:a06::2:4008
98.138.253.109
98.139.183.24
206.190.36.45

> set q=mx
> yahoo.com
Server: hybsdc.xxxxxxxx.com
Address: 192.168.2.3

Non-authoritative answer:
yahoo.com MX preference = 1, mail exchanger = mta5.am0.yahoodns.net
yahoo.com MX preference = 1, mail exchanger = mta6.am0.yahoodns.net
yahoo.com MX preference = 1, mail exchanger = mta7.am0.yahoodns.net
>

Edited by Tonio George 16 hours 15 minutes ago

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July 22nd, 2015 11:04am

Here is the reply

Edited by Tonio George Wednesday, July 22, 2015 3:14 PM

July 22nd, 2015 3:02pm

Here is the reply

Edited by Tonio George Wednesday, July 22, 2015 3:14 PM

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July 22nd, 2015 3:02pm

Hi,

Please refer to Hinte's suggestion to find the delay reason in the queue viewer.

The reason will help us to analysis the issue.

Have you update any patch recently ? Did you have any operations and setting on your exchange server?

please confirm if the issue happens to to all outside domain or one specific domain.

In addicton, we can try to create a new sender connector to test.

Regards,

David

Edited by David Wang_Microsoft contingent staff 14 minutes ago

July 23rd, 2015 3:18am

Yahoo.com was an example. Check for the domain to which emails not going.

Also we did not get the last error message from Queue, pls let us know what was that.

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July 23rd, 2015 5:54am

Hello,

Submission count shows 0.

It was working last 6 years, all of a sudden it stopped sending. We did not make any changes.

I created new sender.

Error:

451 4.4.0 primary target ip address responded with 421 4.2.1 unable to connect attempted failover

Installed service pack. But no luck

Edited by Tonio George 21 hours 3 minutes ago

July 23rd, 2015 6:13am

Hi,

Please refer to Hinte's suggestion to find the delay reason in the queue viewer.

The reason will help us to analysis the issue.

Have you update any patch recently ? Did you have any operations and setting on your exchange server?

please confirm if the issue happens to to all outside domain or one specific domain.

In addicton, we can try to create a new sender connector to test.

Regards,

David

Edited by David Wang_Microsoft contingent staff Thursday, July 23, 2015 7:15 AM

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July 23rd, 2015 7:15am

Hi,

Please refer to Hinte's suggestion to find the delay reason in the queue viewer.

The reason will help us to analysis the issue.

Have you update any patch recently ? Did you have any operations and setting on your exchange server?

please confirm if the issue happens to to all outside domain or one specific domain.

In addicton, we can try to create a new sender connector to test.

Regards,

David

Edited by David Wang_Microsoft contingent staff Thursday, July 23, 2015 7:15 AM

July 23rd, 2015 7:15am

Hello,

Submission count shows 0.

It was working last 6 years, all of a sudden it stopped sending. We did not make any changes.

I created new sender.

Error:

451 4.4.0 primary target ip address responded with 421 4.2.1 unable to connect attempted failover

Installed service pack. But no luck

Edited by Tonio George Thursday, July 23, 2015 10:25 AM

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July 23rd, 2015 10:11am

Hello,

Submission count shows 0.

It was working last 6 years, all of a sudden it stopped sending. We did not make any changes.

I created new sender.

Error:
451 4.4.0 primary target ip address responded with 421 4.2.1 unable to connect attempted failover

Installed service pack. But no luck

Are you sending emails through a smart host? Can you check your firewall to make sure you are allowing smtp traffic?

July 23rd, 2015 11:28am

Hi,

Try to use Telnet to Test SMTP Communication.

Please refer to the below link :

https://support.microsoft.com/en-us/kb/196748

Regards,

David

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July 23rd, 2015 9:44pm

Can you tell me to which domain it gives you this error.

July 24th, 2015 9:07am

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