Certain triggers fail on system with multiple interfaces

[meekrob]

I have a linux server with three interfaces, services run on two, and are filtered by iptables on the third. The following triggers give a false alarm:

IMAP server is down on dungeonmaster
{dungeonmaster:check_service[imap].last(0)}=0 TRUE Average 22 Mar 17:46:53 Add
POP3 server is down on dungeonmaster
{dungeonmaster:check_service[pop].last(0)}=0 TRUE Average 22 Mar 17:46:50 Add
WEB server is down on dungeonmaster
{dungeonmaster:net[listen_80].last(0)}=0 TRUE Average 22 Mar 17:46:49 Add

Can I specify the interface for certain tests?