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Found 2257728 threads
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0 VotesNDRs Attack in Exchange 2013
Sorry that no one replied in a timely fashion. If you are still having the issue, I suggest disabling NDRs and investigating the root cause.Unanswered | 1 Replies | 1025 Views | Created by John Serri - Thursday, June 15, 2017 8:53 PM | Last reply by Dylan.J - Saturday, July 29, 2017 4:07 AM
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0 Votes
Exchange 2013 NDRs
Hi All, I'm running an Exchange 2013 server, the IP that its using has been blacklisted for sending out NDRs to email addresses who have fallen ...Answered | 2 Replies | 2567 Views | Created by azaonline - Sunday, January 20, 2013 3:51 PM | Last reply by Sean_Xiao - Wednesday, January 23, 2013 6:50 AM -
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Exchange 2013 NDRs
Hi, Thanks for this, I have tried it but unfortunately it did't work. I was just wondering though why is Exchange only configured to do it this ...Proposed | 8 Replies | 573 Views | Created by Triumphtech - Monday, June 29, 2015 11:09 AM | Last reply by Triumphtech - Friday, July 3, 2015 10:04 AM -
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Suppressing NDRs in Exchange 2010
Hi All, Where do I control which types of NDRs are sent? We want to disable the 'message delayed' types of errors, and some others. I find some support ...Answered | 1 Replies | 4123 Views | Created by David C33304 - Friday, March 19, 2010 3:04 PM | Last reply by Allen Song - Thursday, March 25, 2010 9:15 AM -
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Exchange 2013, trying to monitor NDRs... how?
How to Copy all NDRs/DSN to a mailbox in Exchange ...Answered | 4 Replies | 1695 Views | Created by techy86_ - Tuesday, December 16, 2014 9:26 PM | Last reply by Nithyanandham Singaravadivelu - Tuesday, December 23, 2014 8:28 AM -
4 Votes
Changing / Stopping NDRs in Exchange 2007
so i am just comparing that why no NDR in exchange Because there was no fatal error (status code 5xx) and the message retryAnswered | 8 Replies | 5783 Views | Created by Exchanger-007 - Monday, September 19, 2011 5:25 AM | Last reply by Exchanger-007 - Saturday, September 24, 2011 11:11 AM -
1 Votes
SBS2003 Reverse NDR attack: filtering on directory not stopping NDRs
); now, such a type of check isn't available in exchange, so, while you may still try adding the backscatterer DNSBL to your lists, using it as any other DNSBL may (and ...Answered | 8 Replies | 9420 Views | Created by colmob - Tuesday, July 19, 2011 2:33 AM | Last reply by ObiWan - Wednesday, July 27, 2011 8:19 AM -
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NDRs on exchange server
In Exchange 2003 there is an option under Default SMTP Server to "Forward all mail with unresolved recipients to host" use the host address of the main group's mail ...Unanswered | 1 Replies | 4105 Views | Created by benkeyser - Tuesday, October 30, 2007 6:41 PM | Last reply by Mike Crowley - Wednesday, October 31, 2007 4:11 AM -
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Exchange overloaded with NDRs
Ok so just to clarify. You can see these message in the outbound queues in the exchange management console? With each domain having its own ...Unanswered | 12 Replies | 4346 Views | Created by Y a h y a - Thursday, August 5, 2010 12:13 AM | Last reply by Leythos - Friday, August 6, 2010 11:40 PM -
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NDRs
Hi, As the exchange admin, I have it setup that all NDRs are forward to my account so I can view them. Is it possible to have more information in ...Answered | 5 Replies | 4154 Views | Created by toolbox - Thursday, June 4, 2009 11:06 PM | Last reply by toolbox - Friday, June 19, 2009 4:01 PM -
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NDRs in Exchange 2010 vs 2016
In Exchange 2016, the message is returned To: the address that includes PRVS, so when you try to forward this message it tries to send it as "Unanswered | 3 Replies | 1759 Views | Created by GregKops - Wednesday, July 12, 2017 7:07 PM | Last reply by GregKops - Thursday, July 13, 2017 1:29 PM -
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Exchange 2010 - Report NDRs with powershell
How to Copy all NDRs/DSN to a mailbox in Exchange 2013 ...Answered | 4 Replies | 759 Views | Created by Java_MCSE - Wednesday, December 10, 2014 2:09 PM | Last reply by Nithyanandham Singaravadivelu - Monday, December 15, 2014 9:57 AM -
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NDRs and copies
Did you follow: http://msmvps.com/blogs/andersonpatricio/archive/2007/07/24/copying-ndrs-to-a-mailbox-in-exchange-server-2007.aspxUnanswered | 3 Replies | 3885 Views | Created by akg414s - Wednesday, January 27, 2010 9:18 PM | Last reply by akg414s - Wednesday, January 27, 2010 11:16 PM -
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No NDRs for Exchange 2007 Distrubution list
In our environment, a Unix system sends emails out with a sender address of a valid Distribution groupAnswered | 3 Replies | 1235 Views | Created by Jeff Turl - Thursday, May 23, 2013 10:23 AM | Last reply by Rich Matheisen [Ex-MVP (retired)] - Wednesday, May 29, 2013 3:28 AM -
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Exchange Server 2010 Attack Protect
Hello; I have Exchange Server 2010 in my company. and nowadays i am getting attack to my Exchange server. when i see event logs, saw different ...Answered | 2 Replies | 941 Views | Created by Davut EREN - Sunday, February 9, 2014 12:13 PM | Last reply by Davut EREN - Sunday, February 9, 2014 3:12 PM -
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Exchange server 2010 under attack?
don't re-install DNS server on other machine, you can also add the record in host file on local machine, if you just want to test if the DNS server send out the traffic to ...Answered | 2 Replies | 1041 Views | Created by sanjee31 - Tuesday, July 2, 2013 7:46 AM | Last reply by wendy_liu - Wednesday, July 10, 2013 6:39 AM -
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Disabling NDRs
Without recipient filtering in, the email will make it to the Hub servers that in turn will not be able to route it internally generating a true NDR. Now, the problem ...Answered | 6 Replies | 12614 Views | Created by ValClark - Friday, July 28, 2006 10:43 PM | Last reply by LarsMS - Friday, December 9, 2016 12:59 AM -
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Question before disabling NDRs
Currently, we copy all NDRs copied to a mailbox but I want to disable NDRs being sent to external users. Is there a way through Exchange to disable the external ...Answered | 5 Replies | 1900 Views | Created by btenney - Tuesday, March 20, 2012 5:38 PM | Last reply by btenney - Friday, March 23, 2012 10:29 PM -
0 Votes
Exchange OWA Brute Force Attack
Force attack, since we found some Exchange users accounts were temporarily locked due to continuous trial to sign-in OWA from Internet side. After 3-5 attempt to ...Proposed | 3 Replies | 3766 Views | Created by Bruce Wong Man Kit - Friday, March 29, 2019 2:23 AM | Last reply by ThinkCenter - Wednesday, April 3, 2019 7:33 AM -
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NDRs being Sent out from Postmaster Account on Exchange 2013
Anti-Spam agents in your Exchange Sevre. Details please read the following article:Proposed | 3 Replies | 540 Views | Created by channavera - Thursday, June 13, 2019 5:12 AM | Last reply by ThinkCenter - Wednesday, June 19, 2019 6:40 AM - Items 1 to 20 of 2257728 Next ›
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