* Mail Domain Aliases: A mail domain (for example: example.org), which points to a local mail domain. For example: example.com. All email addresses ending with @example.org are thus forwarded to the local mail domain example.com.
* Mail Domain Forwards: A mail domain (for example: example.net), which points to an external mail domain. For example: external-domain.com.
* Third Level Mail Domains: A third level mail domain (for example: customers.example.com).
=== Mail Domain Example example (example.com) ===
The following example shows the mail domain name '''stoney-cloud.org''':
<source lang="ldif">
</source>
=== Mail Domain Alias Example example (example.org) ===The following example shows the mail domain alias '''stoneycloudexample.org''', which points to the local mail domain '''stoney-cloudexample.orgcom'''.
<source lang="ldif">
dn: sstMailDomain=example.org,ou=mail,ou=services,dc=stoney-cloud,dc=org
</source>
The following sub tree is an essential part of the Mail Domain Alias example:
<source lang="ldif">
dn: sstMail=@example.org,sstMailDomain=example.org,ou=mail,ou=services,dc=stoney-cloud,dc=org