Version:           Git (master) (using KDE 4.7.3) 
OS:                Linux

I and others hope to see an improved recipient-matching as dicussed in this thread: http://lists.kde.org/?l=kde-pim&m=131987838706876&w=2

- always enable substring matching
- sort results:
  * prefer full-word matches
  * prefer matches at start (questionable to me, but this is the current behavior and hence might be preserved)

if someone points me to the right place I might be able to work on it eventually.

Reproducible: Didn't try

Steps to Reproduce:
- have a known recipient called "foo.bar@asdf.com"
- write new email
- try to find the above recipient by inserting any of the following into the recipient field:
"oo", "ar" "oo.bar", "sdf", "df", ".com", "df.com"

Actual Results:  
no match

Expected Results:  
all of these should match foo.bar@asdf.com