Bug#572789: icedove leaks information to spam servers per dns prefetch

[Ralph Ulrich]

Package: icedove
Version: 3.0.2
Severity: wishlist

Pre thunderbird-3.0.3 builds have an advanced configuration entry:
"network.prefetch-next"  "TRUE"

This seemingly is also an icedove issue too! This means:
Every spammer can send a special hacked email to you, where he gets info
from dns-queries if YOU just read it!

I wish as default a configuration:
network.prefetch-next=false