SVNNotify - not setting date in header

Hi,

I was trying out svnnotify with the following code:

#/usr/bin/svnnotify -r $REV -C -d -H HTML::ColorDiff -p $REPOS -t
myEmail --from fromEmail \
    --smtp myserver\
    --smtp-user credential \
    --smtp-password pw

However, this script doesn't add a Date field to the email header,
yielding this warning in my server:

Jun 20 14:31:59 webservices amavis[13470]: (13470-12) Passed BAD-HEADER,
LOCAL [192.168.10.103] [192.168.10.103] <from> -> <to>, quarantine:
a/badh-asfzLX6WFNfd, mail_id: asfzLX6WFNfd, Hits: -0.319, size: 5193,
queued_as: D1A6012EA182, 560 ms

Has anyone else gotten this error? I tried adding the following, but
with no success (I must be passing the date wrongly):
    --add-header date=`date -R`

Any help appreciated,

Miguel Almeida
Received on 2011-06-20 21:02:31 CEST