DKIM with CGP in trial mode

Hello all,

Is it possible to use the DKIM scripts (Sign & Verify) when using CGP
in trial mode (3 mailbox) ?
Background : When using CGP in this mode, CGP modifies the body of the
message by adding this line *This message was transferred with a trial 
version of CommuniGate(r) Pro*.
If the message is signed before, the body is altered and the verifying
operation seems to fail.

Regards
Fred

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