It is our policy that we do not relay email from domains that are not registered within our system. Sending email from “alien” domains through our relays would violate several RFCs and bear the risk of our relays being blacklisted, which would affect all clients badly.
For example, the domain gmail.com clearly is not registered in the EveryCloud system. We therefore cannot and will not relay email with the above mentioned address. If a client wishes to send out emails using that sender address, he can do so using Google’s (Gmail) mail system. Instead, it is possible to send emails using an address within his domain registered with EveryCloud.