Exclude at trigger action

[Tristis Oris]

i need to exclude some host groups from alerts.

A and (B or C or D or E)
A Trigger severity is greater than or equals Warning
B Host group does not equal B
C Host group does not equal C
D Host group does not equal D
E Host group does not equal E

but user still receive messages about group D. what wrong?

[Semiadmin]

A and B and C and D and E

[Tristis Oris]

but OR technicaly correct too. warning and not A, warning and not B.

[Semiadmin]

In your condition, If group is D:
A and (B<>D or C<>D or D<>D or E<>D) means True and (True or True or False or True) = True
In my condition:
A and (B<>D and C<>D and D<>D and E<>D) means True and (True and True and False and True) = False

[Tristis Oris]

ah. it check boolean result inside brackets.
got it. thanks!