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Email Delay iSsue in Exchange Serve 2010.

    Question

  • hi,

    We have a issue to receive delay in some emails on exchange server.

    we have checked header analyzer so we observed that there is a huge delay between Microsoft EOP and our spam server please see the below snap.

    please help about it

    Monday, September 26, 2016 7:13 AM

Answers

  • Hi

    As per your mail flow delay, you need to check the spam policy for your on premises mail flow and the DNS server you have configured on your spam gateway, try to change DNS and try most of the times name resolution create delay in mail flow at spam gateway.

    Troubleshootings

    1. Navigate to reporting -> system information -> tools
    2. Using the dig command try to resolve a hostname e.g www.google.com
    3. If this doesn’t work, or you don’t get an answer – navigate to system setup -> network
    4. Make a note of any dns servers listed there
    5. Disable DNS cache if enabled
    6. Navigate back to reporting -> system information -> tools
    7. Test each DNS server listed separately – this can be done by appending a space along with ‘@’ symbol followed by the hostname to resolve for ach of your dns serverse.g google.com @192.168.0.1
    8. If you find a server that doesn’t reply, remove it from system setup -> network -> DNS
    9. restart the service and check the impact on your mail flow.

    Hope it will help you to fix your issue.

    Kindly click "Mark as Answer" on the post that helps you, this can be beneficial to other community members reading this thread.

    Regards.

    H.shakir

    • Marked as answer by Owais Khan Monday, October 17, 2016 6:55 AM
    Monday, September 26, 2016 10:13 AM
  • Hi,

    Message header provides less information that we need to troubleshoot this issue. Please refer to the blog that PK Sarangi provided.

    Try message trace

    https://technet.microsoft.com/en-us/library/jj200712%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396

    Or Network capture on on-premises spam filtering server.


    Regards,

    Lynn-Li

    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, September 27, 2016 9:03 AM
    Moderator

All replies

  • Hi,

    Need a little more in site on your exchange setup. Where is your exchange server, is it on-premise or O365? Are you using EOP standalone or for O365?

    Thanks

    Prabodha

    Monday, September 26, 2016 7:35 AM
  • hi prabodha.

    it is on-premises and we are using EOP standalone.

    Monday, September 26, 2016 7:48 AM
  • and we are using spamtitan gateway.
    Monday, September 26, 2016 7:57 AM
  • Hi

    If you already have Spamtitan Gateway to filter incoming spam, why using EOP ? Well,

    You need to check, may be this is a solution for you when EOP and on-premise spam filter negotiate over TLS. 

    https://blogs.technet.microsoft.com/eopfieldnotes/2015/07/08/eop-mysteries-solved-mail-queuing-in-eop-which-is-destined-on-premises/

    Thanks

    Prabodha

    Monday, September 26, 2016 8:22 AM
  • Hi

    As per your mail flow delay, you need to check the spam policy for your on premises mail flow and the DNS server you have configured on your spam gateway, try to change DNS and try most of the times name resolution create delay in mail flow at spam gateway.

    Troubleshootings

    1. Navigate to reporting -> system information -> tools
    2. Using the dig command try to resolve a hostname e.g www.google.com
    3. If this doesn’t work, or you don’t get an answer – navigate to system setup -> network
    4. Make a note of any dns servers listed there
    5. Disable DNS cache if enabled
    6. Navigate back to reporting -> system information -> tools
    7. Test each DNS server listed separately – this can be done by appending a space along with ‘@’ symbol followed by the hostname to resolve for ach of your dns serverse.g google.com @192.168.0.1
    8. If you find a server that doesn’t reply, remove it from system setup -> network -> DNS
    9. restart the service and check the impact on your mail flow.

    Hope it will help you to fix your issue.

    Kindly click "Mark as Answer" on the post that helps you, this can be beneficial to other community members reading this thread.

    Regards.

    H.shakir

    • Marked as answer by Owais Khan Monday, October 17, 2016 6:55 AM
    Monday, September 26, 2016 10:13 AM
  • Dear Shakir,

    if we check the email header in header analyzer we observe the delay in below two points.

    please see the below snap and guide what we do for resolution..

    

    Tuesday, September 27, 2016 5:01 AM
  • if we check the email header in header analyzer we observe the delay in below two points.

    please see the below snap and guide what we do for resolution..

    Tuesday, September 27, 2016 5:07 AM
  • Hi,

    Message header provides less information that we need to troubleshoot this issue. Please refer to the blog that PK Sarangi provided.

    Try message trace

    https://technet.microsoft.com/en-us/library/jj200712%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396

    Or Network capture on on-premises spam filtering server.


    Regards,

    Lynn-Li

    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, September 27, 2016 9:03 AM
    Moderator