Subscriber Management Web Page
Mail-List.com puts a link at the bottom of each email to Unsubscribe
To unsubscribe, switch to/from digest, get on/off vacation, or change your email address, click here.
https://member.mail-list.com/u?ln=youremailgroup&nm=joe@gmail.com
Which displays a web page

This web page gets truncated on some old browsers
Windows 10 Internet Explorer
Windows 8.1 Internet Explorer
Windows 8 Internet Explorer
Windows 7 Internet Explorer