I need to establish forced TLS mail (Outbound) to sepcified domain(Partner Company).

ExchangeMBX2013- CAS ---- >SMTP relay---->Mail Security system-----> external---->Specifed domain.

Mail security system have to receive forced TLS from SMTP relayed and then deliver the TLS mail to external.

I think belows action plan will be required, any other options to do for achievement?

- Public CA for TLS install on Exchange server

- Forced TLS setup in SMTP relayed server  for the domain

• Edited by tanale Friday, June 12, 2015 5:55 AM

Hi,

I agree with Ed.
We need TLS certificate as you mentioned, however we can use self-signed certificate or third-party certificate, heres an article about it:
https://technet.microsoft.com/en-us/library/aa998840%28v=exchg.141%29.aspx
Meanwhile, please pay attention to Selection of Outbound Anonymous TLS Certificates, for your convenience:
https://technet.microsoft.com/en-us/library/bb430773(v=exchg.141).aspx

Thanks

Hi,

I agree with Ed.
We need TLS certificate as you mentioned, however we can use self-signed certificate or third-party certificate, heres an article about it:
https://technet.microsoft.com/en-us/library/aa998840%28v=exchg.141%29.aspx
Meanwhile, please pay attention to Selection of Outbound Anonymous TLS Certificates, for your convenience:
https://technet.microsoft.com/en-us/library/bb430773(v=exchg.141).aspx

Thanks