User manual

Chapter 5: Administration Site
134 Cobalt Qube 3 User Manual
If you want to allow connections from a host that ends, for example, in
mydomain.com, add the string mydomain.com in the text area.
• Receive Email Addressed to Hosts/Domains. In this field, enter the
IP addresses or domain names for which you receive email. Email
addressed to the <hostname.domainname> of the Qube 3 is
automatically accepted.
For example, if you want to receive email addressed to you at
“[e-mail]”, then you must enter “domain.com” in this
field. Otherwise, a sender will have to include the host name in your
email address (for example, [e-mail]).
• Block Email from Hosts/Domains. In this field, enter email addresses
or domains from which you want to block any email. Anyone trying to
send you messages from one of these addresses or domains will receive
an error message in return.
• Block Email from Users. In this field, enter email addresses of users
which you want to block any email. Anyone trying to send you messages
from one of these addresses will receive an error message in return.
4. Click Save in the Email Servers Settings table.
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Note: If you entering a domain name or part of a domain name in
the text box, you must have reverse DNS working on your clients.