When using KMail (NOT KMail 2) in a Linux platform running PCLinuxOS, I set up POP filtration on message size under the KMail configuration facility, and so could avoid downloading a large proportion of obviously bogus/dangerous messages from the server simply by inspecting the subject line and deleting from the check list.  This option does not appear in the KMail 2 configuration facility, and it does not appear to be possible to use "Construct Filters" to achieve the same end, since although filtration on size is provided, none of the actions seems to achieve the desired effect.  The old facility was very useful (and this report is motivated by the inadvertent download of a bogus message) and it would be very helpful either (a) to know where the facility is hidden in KMail 2, or (b) if it is absence, to have it reinstated.

Reproducible: Always