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Changing Domain Names

Dave Goodrich

We are going to be changing our domain name next year due to federal requirements. We must move to a .gov domain name in order to communicate with state and federal agencies. Our AD domain name will change, along with our email server domain. 

In order to do this what changes are required with Sophos Email? I am concerned there are more changes required than the AD sync and domain information in general settings.

Has anyone done this and are there any best practice for making the change?

Thanks,

Dave

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    A few questions: Overall it is not a difficult process but depends on your setup.

    1. Are you setting up a completely new tenant, assuming you are M365?

    If setting a completely new tenant then setup AD Sync for the tenant so mailboxes are created 

    Setup MailFlow or Gateway for the new domain. This allows you to keep accepting email for both domains. Remember Sophos doesn't license domains, it licenses mailboxes so you could have multiple domains tied to one tenant.

    2. If not, are you adding just an Authoritative Domain in M365?

    I've setup multiple domains in a single tenant and send/receive for those domains. Secondary domains become alias addresses to the primary domain.

    I would suggest contacting your Sophos SE and maybe engaging our Professional Services org to assist.

    /Tom

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  • 0

    A few questions: Overall it is not a difficult process but depends on your setup.

    1. Are you setting up a completely new tenant, assuming you are M365?

    If setting a completely new tenant then setup AD Sync for the tenant so mailboxes are created 

    Setup MailFlow or Gateway for the new domain. This allows you to keep accepting email for both domains. Remember Sophos doesn't license domains, it licenses mailboxes so you could have multiple domains tied to one tenant.

    2. If not, are you adding just an Authoritative Domain in M365?

    I've setup multiple domains in a single tenant and send/receive for those domains. Secondary domains become alias addresses to the primary domain.

    I would suggest contacting your Sophos SE and maybe engaging our Professional Services org to assist.

    /Tom

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