Procmail filter Mail virus

Put all letters that receive the subject with test characters into the/var/mail/in.test file.

: 0 B
* ^subject:.*test
In.test

Reference static virus code

Http://alcor.concordia.ca/topics/email/auto/procmail/spam/tag-contents.html

Iii. Observing System Log statistics-m merge error to same line (delete original record, recalculate)
-L increase the average message size per person (delete original record, recalculate)
-K Keep the original log file
-O Use the old statistical data file
-T no general statistics