Solved

Exchange 2010 all messages getting stuck in queue with error 400 4.4.7

Posted on 2014-12-13
6
130 Views
Last Modified: 2014-12-13
We had some power issues yesterday and while that normally wouldn't be an issue we are in the middle of changing our UPS equipment out. Needless to say servers we not powered down in a clean way. The exchange server came back up with the error that it had lost its trust relationship with the domain. I removed it from the domain and rejoined and that seems to bring email back up online.

Now this morning I am seeing that all of the outgoing messages to external domains are getting caught with the error above. Nothing has changed but i have a feeling it has to do with out send connector but I am not seeing any issues with it. Any help would be much appreciated.
0
Comment
Question by:Chris Christensen
  • 4
6 Comments
 
LVL 19

Expert Comment

by:R--R
ID: 40498003
Can you check the event viewer for error events. Is you outbound email going through smarthost or DNS.
Please check internal emails.
Can you check your gateway/firewall is operational.
Run telnet mx1.hotmail.com 25 and check if you are able connect.
Also check if 25 port is open at firewall and ISP end.
0
 

Author Comment

by:Chris Christensen
ID: 40498020
Unable to telnet out, and email going through smarthost. I checked the outbound firewall rules and there is a rule allowing outbound 25 from internal to Any.

As far as event viewer goes, which logs should i be checking?
0
 

Author Comment

by:Chris Christensen
ID: 40498035
I am also getting this error every once in a while.

the remote pipeline has been stopped. it was running the command....
0
What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

 

Author Comment

by:Chris Christensen
ID: 40498039
Running mail flow analyzer got me a piece of info.

Invalid InternalDNSAdapterGuid setting found.
0
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 500 total points
ID: 40498190
Have you set DNS servers on the Send Connector? If so, remove it and restart Transport.

Simon.
0
 

Author Comment

by:Chris Christensen
ID: 40498217
Send connector some how was as singed to a nic that did not exist.
0

Featured Post

Want to promote your upcoming event?

Are you going to an event? Are you going to be exhibiting at a tradeshow? Talking at a conference? Using a promotional banner in your email signature ensures that your organization’s most important contacts stay in the know and can potentially spread the word about the event.

Join & Write a Comment

Follow this checklist to learn more about the 15 things you should never include in an email signature from personal quotes, animated gifs and out-of-date marketing content.
Learn to move / copy / export exchange contacts to iPhone without using any software. Also see the issues in configuration of exchange with iPhone to migrate contacts.
In this video we show how to create a User Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Mailb…
In this video we show how to create a Distribution Group in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >>…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now