A sibling domain is an exact replica of a primary domain, in all respects except the name of the domain itself. The primary domain and the sibling domain must have the exact same mail host, email account lists, aliases, spam filtering settings, and so forth. For example, yourcompany.com may be a primary domain while yourcompany.net may be a sibling domain -- in which case, when the filter receives any message to an address at yourcompany.net, it will treat the message exactly as if the message was sent to the same an address at yourcompany.com. The sibling domain can be added in the Domains section of the control panel.
Articles in this section
- How do I access the Control Panel?
- NoSpam Mail Protection Billing Questions
- Can or should we establish SPF records?
- Can I continue to use SPF on my mail server?
- What is SPF?
- What happens to email sent to addresses that aren't listed in the control panel?
- How do I keep emails to bogus/invalid addresses off my network?
- Can the filtering be in place for only some of the email addresses in my domain?
- What is a sibling domain?
- How do I set up a distribution list for filtering?