Accepting e-mails regardless of the domain they have been sent to - F-Secure Community
<main> <article class="userContent"> <p> </p> Accepting e-mails regardless of the domain they have been sent to <p>This article explains how to accept all incoming e-mails regardless of the domain they have been sent to. </p> <p>If it is necessary to accept all inbound mail traffic regardless of the domain they have been sent to, do as follows: </p> <ol><li> Go to <strong>Appliance/Inbound Mail</strong>. </li> <li> Insert a dot (.) to the <strong>Mail for Host / Domain </strong>field. </li> <li> Keep the Mailer as the default ("ESMTP") unless your e-mail server requires "SMTP". See the note below about security issues. </li> <li> Type in the actual mail server IP address or DNS name to the <strong>Route to Host(s) / Domain(s)</strong> field. </li> <li> If necessary, change the <strong>Lookup By</strong> and <strong>Delivery Type</strong> settings to match your environment. </li> <li> Click <strong>Save Changes</strong> to finish the configuration. </li> </ol><p>In this way all the domains receiving e-mails in your organization do not need to be inserted into the Inbound Mail Relay table. </p> <p><strong>Note:</strong> Make sure that your actual e-mail server treats all the e-mails coming from your F-Secure Messaging Security Gateway IP address as inbound traffic if you configure the product as described here. Also, do not select DNS in the Mailer table because there is a risk of opening your e-mail server or F-Secure Messaging Security Gateway to act as an open SMTP relay which can be accessed from the Internet by spammers. </p> </article> </main>