When planning the deployment of Domain Rewrite Service we recommend the following regarding Sender Policy Framework (SPF) records:
Update your existing SPF record to include the On Demand Migration Domain Rewrite list of acceptable domains. This will prevent any hard failures when routing mail through the Rewrite Relay Service.
Include the following domains with your SPF record from all source and target domains participating in Domain Rewrite:
The following will include all regions, and will work for all scenarios.
spf.odmad.quest-on-demand.com
Or, configure a specific region if desired.
spf.us.odmad.quest-on-demand.com
spf.ca.odmad.quest-on-demand.com
spf.eu.odmad.quest-on-demand.com
spf.uk.odmad.quest-on-demand.com
spf.au.odmad.quest-on-demand.com
