Sitelutions Space accounts require some special configuration for SPF records to correctly pass validation.

In order to protect our customers and ourselves, we make use of a third party mail filtering service which helps filter outbound mail, and it is necessary to ensure they are authorized as a valid origin for email from your domains.

If you are configuring SPF for your domain, please ensure that you include the following in your SPF record:

+include:relay.mailchannels.net

This will ensure that mail from the MailChannels Mail servers is considered a "pass" for your domain, when sent from Sitelutions.