locked
New child domain for exchange and Skype for business EWS RRS feed

  • Question

  • Hi ,

    We are going to add a child domain for exchange and Skype.

    Default domain.com , Outlook normal, Skype client EWS ok.

    new ss.domain.com , outlook normal , Skype EWS not working, not exchange credential prompt and show outlook integration error.

    Any advise?

    Thanks.


    • Edited by JohnHK215 Saturday, September 1, 2018 6:24 AM update
    Saturday, September 1, 2018 6:16 AM

Answers

  • Hi Mick,

    Just adding the domain into Exchange and Skype will not help, there are several factors to be considered.

    Let me explain here.....

    Scenario:

    • Existing SMTP domain: DefaultDomain.com
    • Existing Skype domain (SIP domain) : DefaultDomain.com
    • New SMTP domain : ss.domain.com
    • New Skype domain (SIP domain) : ss.domain.com

    So you have introduced the new domain (SS.domain.com) into your Active directory forest and have added the same as accepted domain into Exchange, and have added this domain into Skype for Business topology as "Additional SIP domain".

    So now the User who have email address as User@Defaultdomain.com and Skype address as User@Defaultdomain.com have no issues with EWS.

    ===========================================================

    However when user have email address as User@ss.domain.com and Skype address as User@Defaultdomain.com will have EWS issue ; is this right ? 

    >> If this is right, then you need to have DNS Autodiscover records for your new SMTP domain

    • Create Autodiscover DNS HOST A/CNAME record like "Autodisocver.SS.domain.com" and point to  CAS server IP/ CAS Array.
    • Ensure you have the "SS.domain.com" exists in your CAS server's certificate.
    • Make a changes to your Skype for Business client policy by running the below command
    Set-CsClientPolicy -Identity "ClientPolicy" -DisableEmailComparisonCheck $True

    >> If you have SMTP address and Skype address are same, then you shall do create only Autodiscover DNS Host A/CNAME record and point to CAS server IP or CAS array for you new SMTP domain.

    • Create Autodiscover.ss.domain.com and point to  CAS server IP/ CAS Array.
    • Ensure you have the "SS.domain.com" exists in your CAS server's certificate.



    Neeranjan Shettar (MyPage)

    [If a post helps to resolve your issue, please click the "Mark as Answer" of that post or click Answered "Vote as helpful" button of that post. By marking a post as Answered or Helpful, you help others find the answer faster. ]

    Sunday, September 2, 2018 2:17 PM

All replies

  • Skype client does autodiscover on the SIP name, seen you did not change the sip name of the user the autodiscover will still resolve the domain.com DNS record pointing to domain.com EWS server. 

    So basically you did not change anything in this flow when you installed the sub domain. Also why would you want your skype EWS to go to a different server ? 


    MCSA exchange 2016 | MCTS exchange 2013 | MCTS-MCITP exchange 2010 | MCTS-MCITP Exchange: 2007 | MCSA Messaging: 2003 | MCP windows 2000

    Saturday, September 1, 2018 9:12 PM
  • Skype client does autodiscover on the SIP name, seen you did not change the sip name of the user the autodiscover will still resolve the domain.com DNS record pointing to domain.com EWS server. 

    we add ss.domain.com for Skype too.

    So basically you did not change anything in this flow when you installed the sub domain. Also why would you want your skype EWS to go to a different server ? 

    We didn't change any record for exchange  server, we add accept domain for ss.domain.com.

    Sunday, September 2, 2018 11:47 AM
  • Hi Mick,

    Just adding the domain into Exchange and Skype will not help, there are several factors to be considered.

    Let me explain here.....

    Scenario:

    • Existing SMTP domain: DefaultDomain.com
    • Existing Skype domain (SIP domain) : DefaultDomain.com
    • New SMTP domain : ss.domain.com
    • New Skype domain (SIP domain) : ss.domain.com

    So you have introduced the new domain (SS.domain.com) into your Active directory forest and have added the same as accepted domain into Exchange, and have added this domain into Skype for Business topology as "Additional SIP domain".

    So now the User who have email address as User@Defaultdomain.com and Skype address as User@Defaultdomain.com have no issues with EWS.

    ===========================================================

    However when user have email address as User@ss.domain.com and Skype address as User@Defaultdomain.com will have EWS issue ; is this right ? 

    >> If this is right, then you need to have DNS Autodiscover records for your new SMTP domain

    • Create Autodiscover DNS HOST A/CNAME record like "Autodisocver.SS.domain.com" and point to  CAS server IP/ CAS Array.
    • Ensure you have the "SS.domain.com" exists in your CAS server's certificate.
    • Make a changes to your Skype for Business client policy by running the below command
    Set-CsClientPolicy -Identity "ClientPolicy" -DisableEmailComparisonCheck $True

    >> If you have SMTP address and Skype address are same, then you shall do create only Autodiscover DNS Host A/CNAME record and point to CAS server IP or CAS array for you new SMTP domain.

    • Create Autodiscover.ss.domain.com and point to  CAS server IP/ CAS Array.
    • Ensure you have the "SS.domain.com" exists in your CAS server's certificate.



    Neeranjan Shettar (MyPage)

    [If a post helps to resolve your issue, please click the "Mark as Answer" of that post or click Answered "Vote as helpful" button of that post. By marking a post as Answered or Helpful, you help others find the answer faster. ]

    Sunday, September 2, 2018 2:17 PM