Suggestions wanted: Self hosted newsletter unsubscriber

Hey there,

I recently got increasingly annoyed by all the newsletters that keep to pop up in my (admittedly rather old) E-Mail-Accounts and I thought it might be a cool idea to have them unsubscribed from in bulk. Now I know of services like unroll.me, but those will of course scrape everything they can from your mail account. So: Is there any self-hosted alternative to these services so I can run them myself?

Thanks in advance :)