Hi there,
first of all, thanks a lot for this module. To me, this is a quite nice alternative from Simplenews and I think I will start using this module.

Second, let me ask for a little improvement in Subscribers management.
Could you, please, consider to add some "Mass Unsubscribe" functionality? Also some way to search for a single email address, or maybe more complex search options, like search by domain, by country code, etc. As far as I could see, if someone needs to delete one address, the only way to find it is browsing along them all. I maintain one site with a list of 11k addresses, it's not easy to browse to a specific address.

Thanks! Best regards!
Jose