[exim] BCC Filter not working

Hi,

I'm trying to setup following exim filter but it's not working, assuming
example.com is my domain and I want any outgoing mail from my server
containing some key-work in BCC should also get delivered to our monitoring
ID alerts@???.

#####Test Filter 20/Apr/2017
if ("$h_from:" contains "example.com" and $h_bcc:" contains "ajaykajla")
then
unseen deliver "alerts@???"
endif
######

Is there any problem in above filter?

Regards,
-Ajay

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