KSMG - single domain with multiple Exchange servers in different AD's

[Andre315]

I have several on-premise and online Exchange servers which are in different AD's. At the present moment each server use own domain: server 1 - abc.com, server 2 - bcd.com, etc. and this setup works perfectly with Kasperskiy mail gateway. However, we would like to change the configuration and use a single domain example.com for all servers. So, I'm wondering if KSMG supports a possibility to use a single domain for multiple exchange servers and what is an optimal setting for email distribution between servers?  

[grannygame]

On 10/2/2024 at 2:15 PM, Andre315 said:

I have several on-premise and online Exchange servers which are in different AD's. At the present moment each server use own domain: server 1 - abc.com, server 2 - bcd.com, etc. and this setup works perfectly with Kasperskiy mail gateway. However, we would like to change the configuration and use a single domain example.com for all servers. So, I'm wondering if KSMG supports a possibility to use a single domain for multiple exchange servers and what is an optimal setting for email distribution between servers? 

Have you considered the potential risks of configuring a shared domain for multiple AD environments? For example, internal routing between servers or SPF/DKIM/DMARC processing will need to be closely synchronized — do you have an optimal solution for this?