On my mail server, I have a custom logcheck rule as follows, which is intended to filter messages from deliver:
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ deliver\.*\): msgid=.*: saved mail to.*$
Unfortunately, the msgid=.* wildcard does not match if there are non-latin characters in the Message-Id, so lines like the following make it through the filter:
May 10 19:43:20 zapp deliver(matt): msgid=<20110510064307.3702.qmail@ÇöÀÌ01>: saved mail to spam
Logcheck uses egrep internally, and I've not found any way to make the period character include non-latin characters. Any ideas?