[Exim] uvscan config with exiscan

I am trying to test the exiscan configuration with uvscan.
The exim version is 4.12.
When I send a dummy virus EICAR, using:
exim s.choudhury@???
........

<the EICAR virus string>
it appears that it is going through and only being stopped at the
client end.
My configs are as follows:

exiscan_condition = 1
exiscan_crypt_salt = fo
exiscan_unpack_mime = true
exiscan_timeout = 2m
exiscan_av_condition = 1
exiscan_av_action = reject
exiscan_av_scanner = cmdline
exiscan_av_scanner_path = /usr/local/uvscan/uvscan
exiscan_av_scanner_options = -secure -rv --clean --delete --noboot |
exiscan_av_scanner_regexp_trigger = found
exiscan_av_scanner_regexp_description = 'Found[: ] (.+)$'
exiscan_av_buffer_max_chunks = 2

Is there anything I am doing wrong?

Many thanks

Sujit Choudhury
----------------------
Sujit Choudhury
University of Westminster
E-Mail: S.Choudhury@???
Tel No: 020 - 7911 5000 Ext 3851

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----------------------
Sujit Choudhury
University of Westminster
E-Mail: S.Choudhury@???
Tel No: 020 - 7911 5000 Ext 3851

-
This e-mail and its attachments are intended for the above named
only and may be confidential. If they have come to you in error
you must not copy or show them to anyone, nor should you take any
action based on them, other than to notify the error by replying to
the sender.