FAQ Database   When sending email through the SMTP mailserver, I get "Relaying Denied" or "553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)"   Please make sure that the SMTP authorization is checked in your email client. For Outlook Express, you wil need to go to Tools --> Accounts --> Properties of the appropriate account --> Service. At the bottom of that page, you are required to check "My Server requires Authentication".