Hosted Exchange FAQ and Troubleshooting

Setting Up a Split Domain

What is a Split Domain?

A Split Domain allows you to receive your mail in 2 locations. When a Split Domain is enabled the Exchange server will use the MX record for your domain to determine where to send mail for email addresses which do not have a valid mailbox on the Exchange server.

When is it useful to have a Split Domain?

A Split Domain is particularly useful for organizations that:

1. Only have a partial number of your users who require the need for a hosted Exchange mailbox, while POP email is sufficient for others at your company.
2. Plan to migrate users to our hosted Exchange environment over a long period of time - also known as a 'slow migration'.

Why do you need a Split Domain?

A split domain will be needed in either of the two scenarios above, because when the domain has been split between the two servers, email sent to users of the same domain, yet outside of the Exchange environment, the message will bounce.

The Exchange Server will only look within the Exchange Server for resolution. Not recognizing the email address, it rejects it. When the Split Domain is enabled a connector is created. The Exchange Server will then use the MX record for your domain to determine where to send mail for email addresses which do not have a valid mailbox on the Exchange server.

Please contact Support with the following information to have a Split Domain enabled. There is a one-time setup fee for the manual setup.

1. Company name
2. Domain name

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