I have a rule that is looking for emails sent to a specific domain and i would like to filter out the events where a particular group inbox is the target. The UDM fields for an example event look like this: target.user.email_addresses[0] = account1@domain.com, target.user.email_addresses[1] = group1@domain.com, etc. 

My rule has a line like this target.user.email_addresses != "group1@domain.com". However, these events are not being filtered out. Any ideas why? I was thinking it may be related to this being a multi-value repeated field, so != on the one address may not work...