MIME::Parser error with amavisd-new-2.6.4-3

[Alex]

Hi,

I have a fedora15 system with spamassassin-3.3.2 and
amavisd-new-2.6.4-3 and perl-MIME-tools-5.502-1.fc15.noarch and have
loads of the following in the logs:

Sep 13 15:18:26 mail02 amavis[4956]: (04956-02-14) WARN: MIME::Parser
error: part did not end with expected boundary

I've seen several references to this problem online, but all of them
involve upgrading a version earlier than the one I already have
installed.

Is this something to be concerned with? How can I troubleshoot this?

Thanks,
Alex