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Date: Mon, 22 Sep 2008 13:53:02 +0200
From: Leslie Jensen <leslie@eskk.nu>
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Subject: IMAP server talks back PF blocks
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When doing
tcpdump -n -e -ttt -i pflog0

I frequently see packets blocked that looks like this

458660 rule 0/0(match): block in on em0: xxx.yyy.zzz.qqq.993 >
qqq.zzz.yyy.xxx.59930:  tcp 8 [bad hdr length 12 - too short, < 20]

It's the IMAP server I'm using that tries to talk back. Is this
something I should try to let through?

/Leslie