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Exchange server 2016 select send connector RRS feed

  • Question

  • Hi all

    I have a mail flow problem in Exchange 2016 . We are in multi-site environment and each site had its own send connector to different smart host. All Exchange server had mailbox role with transport service installed.

    We find sometimes email will transfer to another AD site Exchange server when sending internet email.

    "Scoped send connector" was select on all the send connector. The mailbox server for the sender had send connector created.

    Basic on Microsoft article, Exchange select send connector first will using itself.

    https://docs.microsoft.com/en-us/exchange/mail-flow/mail-routing/connector-selection?view=exchserver-2019

    Does anyone know why Exchange 2016 not select itself's send connector? Thanks.

    Best Regards,

    Roy Chung

    Monday, November 25, 2019 9:22 AM

All replies

  • Hi Roy CSH,

    If you have selected "Scoped send connector" option, the connector is only usable by other transport servers in the same Active Directory site. 

    The following article detailed introduced the option:

    What are Scoped Send Connectors?

    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

    You can use the following command to check the configuration of your send connector 

    Get-SendConnector |fl name, *isscoped*, enabled, *source*

    In addition, you can refer to the following similar cases about the discussion of send connectors.

    Scope Send Connector In Exchange 2016

    Scoped Send Connector - Should it be used for HA and Site Resiliency? Lab Environment!

    Regards,

    Joyce Shen


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Tuesday, November 26, 2019 2:34 AM
  • Hi Joyce,

    Today, I found the problem not relate to the "Scope send connector".

    It looks like if the message recipient contain other site's user and external recipient. 

    The message will first route to another site and it will use another site send connector to send to external recipient.

    If the message only contain same site and external recipient. It will not select another site send connector.

    Do you know any way I can control the mail flow not using another site send connector? 

    Many Thanks,

    Roy Chung

    Tuesday, November 26, 2019 6:28 AM
  • Hi Roy,

    if you wish to to route outgoing emails based on the sender domain or other parameters,

    google for "RouteBySender for Exchange 2013/2016/2019"


    Tuesday, November 26, 2019 2:03 PM
  • Hi Roy CSH,

    If the message recipient contain other site's user and external recipient. 

    The message will first route to another site and it will use another site send connector to send to external recipient.

    If the message only contain same site and external recipient. It will not select another site send connector.

    The condition you mentioned above is by design, Exchange uses this mode to deliver message. 

    Regards,

    Joyce Shen


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Friday, November 29, 2019 9:43 AM
  • Hi,

    Is there any update about your issue?

    Regards,

    Joyce Shen


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Friday, December 6, 2019 10:23 AM