"searching for sender's image" causes Mail to freeze
I keep seeing "searching for senders' image" in the Activity panel and mail is frozen while it's there. I have the "use images" setting unchecked. Very annoying.
I see that people have posted the same question several times over the years and it hasn't been answered.
iMac (21.5-inch Late 2009), OS X Mavericks (10.9.5)