Forum Discussion

Copper Contributor

Mar 31, 2020

Comodo - Sectigo Certificate for MS Teams Direct Routing

Hi, We are planning to set up Direct Routing. For communicaiton between the SBC and MS Teams, a certificate is required and the docs state that "The certificate needs to be generated by one of t...

microsoft teams

RealTime_M365

MVP

Mar 31, 2020

Hi jers53

Although I have not used the vendor for Certificate. It should be good to use the certificate from the Vendor. In case you want to have a written confirmation from MS Standpoint I would recommend that you open a Ticket with MS Team and have a confirmation from the Team on Email for documentation purpose.

With Regards.

Satish U

jers53
Copper Contributor
Apr 01, 2020
HelloRealTime_M365

Just got off the phone with someone from MS.
They told me that even though the company Comodo is now owned by Sectigo, it doesn't matter. The issuer of the certificate, in the contents of the certificate, needs to be "Comodo" (or another issuer that is on the list) ) and not "Sectigo".

So according to this info I'll have to request a new certificate.

Kind regards,
Jeroen
- RealTime_M365
  MVP
  Apr 01, 2020
  Hi jers53
  
  Thank You for the confirmation!!!
  
  Basically Microsoft has allowed only specific vendors to be trusted with Office 365. Hence we have to have specific vendor to have the TLS Negotiation done properly.
  
  Do let me know in case you need any additional assistance.
  
  With Regards,
  Satish U
jers53
Copper Contributor
Apr 01, 2020
HelloRealTime_M365

Thanks for your quick and clear reply!
I'll try contacting MS as well for an "official" confirmation, and will update this question if I get an answer

Kind regards,
Jeroen.