Here is a tip for those LGFLMail domain admins who wish to have more than one alias assigned to shared mailboxes……
If you want a shared mailbox to be addressable via more than one alias then start off by making a note of the target shared mailbox underlying name (this will be in the form mailboxXXXX@lgflmail.org where XXXX is a unique number). Armed with this information you should now select Administer Aliases from the Activity drop down menu.
At the bottom of the list of aliases created on your domain, enter the new alias name and then select the correct mailbox name from the drop down list (under Destination). Add further aliases to taste.
That is all there is to it.