Hi,
I've installed kav4lms-5.6-26 with sendmail, step-by-step like admin's guide said.
I can send mails, but in maillog I have some errors:

kav4lms-filters[1861]: app [116673424] ERROR Unable to add header!
kav4lms-filters[1861]: app [116673424] ERROR Unable to change header!
kav4lms-filters[1861]: app [116673424] INFO Replacing email body

I can't find, what is wrong?!
Any idea?...

Thanks in advance.

for sendmail kav4lms-milter should be used, not kav4lms-filters

Thanks a lot,
I didn't see that I must manually edit /var/opt/kaspersky/applications.setup file.

btw, why you don't use automatical integration, eg kav4ms-setup.sh script?