The Properties dialog is used to create a new SecurityGateway domain, or to edit an existing one. You can reach the Properties dialog by clicking New on the Domain List or selecting an entry and clicking Edit. Properties has four tabs: Properties, Verification, Mail Servers, Admin.
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Domain Administrators have read-only access to the lists of Verification sources and Mail Servers. |
Properties
The Properties tab is used for designating the domain name, the maximum number of user accounts permitted to belong to the domain, and an AUTH password. The user limit and password are optional.
Domain Name:
Enter the domain name into this text box. For example: "example.com", "domain.com", or the like. This is the domain that will be used in each user's email address.
Limit number of users
If you wish to limit the number of users that can belong to this domain, click this checkbox and enter the desired number below. This option is disabled by default.
Maximum Users:
If you desire to limit the number of user account that can belong to this domain, enable the Limit number of users option above and then enter the number of users here.
Limit maximum message size
Check this box and specify an amount if you wish to set a maximum acceptable SMTP message size for this domain's messages. By default this option is disabled, and the global Maximum acceptable SMTP message size limit applies.
SMTP AUTH password
Use this option if you wish to designate an SMTP AUTH password for this domain, that your users or domain mail server can use to authenticate when sending messages through SecurityGateway. To authenticate using this password, use the domain as the Logon/Username credential. For example, if the domain is "example.com" and you designate "1234Password" in this option, then you would authenticate using the credentials: "example.com" and "1234Password". If you leave this password option blank then any sender attempting to authenticate using only the domain name as the username will fail.
The SMTP AUTH password may also be useful if the administrator wishes to use CRAM-MD5 authentication. This type of authentication requires that SecurityGateway know the password; the user verification source cannot be used.
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In most cases each user would simply use his or her own account email address and password as the authentication credentials, but there are certain email server configurations that might require the domain's email server to have its own credentials, or require multiple users to share one set of AUTH credentials. This option is provided to accommodate those with that type of requirement. |
Bind domain to IP address
Check this box and enter an IP address and host name in the spaces provided if you wish to bind the domain to a specific IP address. Mail from the domain will be sent from that IP address. An HELO String, or SMTP Hostname, may also be specified for the domain. This value is the Fully Qualified Domain Name (FQDN) that will be used in the SMTP HELO/EHLO instruction when sending mail for the domain. For incoming connections, this value will be used unless multiple domains are bound to the same IP address, in which case the FQDN used will be the one that is associated with the domain that is first in alphabetical order.
Domain Aliases
Use this option to designate any aliases for the domain. All of the domain's users are assumed to be valid for each domain alias. This is useful if a domain has registered multiple domain names, e.g. altn.com, altn.us, altn.biz, etc.
Verification
The Verification tab is used for assigning the User Verification Sources that will be used for the domain. When a message arrives for this domain addressed to an unknown user, these sources will be queried to see if the address is legitimate. If the address if found then a SecurityGateway account will be created for that recipient.
Do not query a verification source, users will be managed manually
Click this checkbox if you do not wish to query any verification sources for the specific domain. In that case all users must me managed manually for that domain.
Available Sources:
This box lists all available user verification sources that you have previously created. To assign a source to this domain, select it from the list and click the "--->" arrow.
Selected Sources:
This box lists all verification sources that you have assigned to this domain. To remove a source from the domain, select it from the list and click the "<---" arrow.
Preference: Up/Down
Verification sources will be queried in the order in which they appear in the Selected Sources list. To move a source to a higher or lower position, click the source and then use the Up and Down arrows to move it to the desired position.
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As soon as either a positive or negative result occurs, SecurityGateway will accept the result and stop querying the sources. For example, if three sources are listed and the first one states that the user doesn't exist, SecurityGateway will accept that result and reject the message without querying the other two sources. However, if a non-fatal error occurs, for example because the verification source is temporarily down, then the message will be rejected with a 4xx error code, indicating that the sender should try again later. |
New
If you need to create a new user verification source to use for this domain, click New to open the New User Verification Source screen. After creating the new source it will appear in the Available Sources list.
Mail Servers
The Mail Servers tab is used for assigning the Domain Mail Servers that will be used for the domain. When a message arrives for a verified user of this domain, SecurityGateway will attempt to deliver that message to the Selected Servers listed here, in the order in which they are listed.
Available Servers:
This box lists all available Domain Mail Servers that you have previously created. To assign a server to this domain, select it from the list and click the "--->" arrow.
Selected Servers:
This box lists all Domain Mail Servers that you have assigned to this domain. To remove a server from the domain, select it from the list and click the "<---" arrow.
Preference: Up/Down
SecurityGateway will attempt to deliver messages to the Domain Mail Servers in the order in which they appear in the Selected Servers list. To move a server to a higher or lower position, click the server and then use the Up and Down arrows to move it to the desired position.
Do not use this mail server to deliver domain mail, only make available to assign to specific domain users
If you select a server and click this box, that server will not be used to deliver the domain's mail—it will be designated "[USER ONLY]." If you wish to use that server to deliver mail for specific users, use the Mail Delivery options on the User Edit » Properties page to assign that server to the user.
New
If you need to create a new Domain Mail Servers to use for this domain, click New to open the New Mail Server screen. After creating the new server it will appear in the Available Servers list.
Admins
The Admins tab is used for assigning the Administrators that will have permission to administer this domain. Global administrators are not listed here since they already have permission to administer all domains.
Available Administrators:
This box lists all available Domain Administrators that you have previously designated, regardless of the domains over which they have control. To give an administrator permission to configure this domain, select it from the list and click the "--->" arrow.
Selected Administrators:
This box lists all Domain Administrators who have permission to administer this domain. To remove someone's admin-level access to this domain, select the administrator from the list and click the "<---" arrow.
New
If you need to create a new Administrator for this domain, click New to open the New Administrator screen. After creating the new administrator it will appear in the Selected Administrators list.
