There is a thread in this forum about the List-Unsubscribe standard outlined at www.list-unsubscribe.com which requires a header embedded into the email specifying an unsubscribe email address, and which when present gives the user an easy to use unsubscribe button in Gmail and Hotmail and others.
The List-Unsubscribe header is said to be an important feature because if the user clicks spam on the email, Gmail and Hotmail etc will properly unsubscribe rather than silently marking the mail as spam. This helps to preserve the reputation of the sender and reduces traffic and provides feedback on the effect of messages.
The main forum thread about this feature is here: http://forums.phplist.com/viewtopic.php?f=7&t=24474&p=91989&hilit=unsubscribe+header#p91989
It dates back to 2009 and talks about a custom mod, but other threads seem to suggest this feature is now built in. I can’t figure out whether this feature exists by default or is a mod, and how to set it up. For example, does the bounce process check for these unsubscribe response email messages manually or do we need to setup a cron job?
Please help, many thanks…