pid file is not unlinked on exit (sagator is still in chroot)
dspam scanner
crm114 scanner
documentation of direct port 25 scanner
programmers documentation
other antivir support
Milter can't modify Subject and other headers, only can add some new.
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Python bugs:
  zipfile read has no attribute to set filesize, whole file must
    be read into memory and then saved :(
