My RT Doesn't sendmail to requestor on reply

Hi,

Curiously my RT (3.4.0 upgraded from 3.2.2 /MySQL 4.0.23/Apache 1.3.33)
doesn’t sendmail when a Owner reply on a ticket.

And that is the log :

Feb 14 16:10:08 mimas RT:
rt-3.4.0-10006-22238-22.17.5069133529779@VeePee sent To: Cc: Bcc:
hlepesant@veepee.com (/opt/WebSites/rt34/lib/RT/Action/SendEmail.pm:295)

Is that normal ?

Hugues