Solved

Internal Server not able to send email after changing which HubTransport server to use

Posted on 2013-05-16
1
210 Views
Last Modified: 2013-05-22
We have several servers that send SMTP email internally. These emails are typically server status notices after a process is complete.
To prep for some DR tests, I changed the Exchange HubTransport server used to receive the emails into Exchange.
I double and triple checked both of the HubTransport servers had the exact same Receive connector.

After the change of the HubTransport server, mail flowed properly and I could see in the header that the new HubTransport server was used for a majority (more than 10) of the servers sending emails.

But we had 4 servers that received "5.7.1 Client was not Authenticated" and the mail did not flow.

Since this was during the day and it was hours after the change with still no mail flow on these problem servers, we had to change the HubTransport server BACK to the original one. When we did this 3 of them still did not work. We got a brainstorm and did a DNS Flush on the problem servers which corrected the issue.

With this information, we feel that we can put the new HubTransport server change back in and be prepared to just Flush the DNS on the problem servers and result in the email flowing from these servers.

Is anything I may have missed? If the Receive connector is the same on both HubTransport servers is there anything else that could have caused this issue?

This is an Exchange 2007 server environment on Win 2008 boxes.

Thank you,
0
Comment
Question by:swfwmd2
1 Comment
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 500 total points
ID: 39174441
Are you sure the connectors are 100% identical, because from the error you have posted it would appear not.

run

get-receiveconnector | fl and then compare the output.

How are you controlling the server they use? DNS entry? If so, turn the TTL time down, so any changes are effective quickly. Running it with a 10 or 15 minute TTL internally wouldn't cause a problem.

Simon.
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

Not sure what the best email signature size is? Are you worried about email signature image size? Follow this best practice guide.
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.
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…
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

705 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

16 Experts available now in Live!

Get 1:1 Help Now