Removing subscribers?

I’m handling quite a large subscriber base using this plugin. I have over 5000+ email addresses signed up for the newsletter. I occasionally get a subscriber that wishes to be unsubscribed and does not bother to read the unsubscribe link in the email.

In this kind of case I have to remove the subscriber manually from the admin but I’ve noticed there is no easy way to find a email address quickly and remove it without going through the list.

Is there any kind of search box or something similar that I can use to find a subscriber easily without having to look through a list of 5000+ people?

Thanks.