Is the Charter.net feedback loop still functional?
Summary
What email marketers say5Marketer opinions
Email marketer from Stack Overflow says they contacted Charter support and was told they discontinued the FBL program due to low usage and abuse.
Email marketer from Reddit mentions that they haven't been able to get a Charter.net FBL working in years, and suggests focusing on authentication and list hygiene instead.
Email marketer from MailerMailer Knowledge Base confirms that Charter.net (Spectrum) does not currently offer a public feedback loop. They suggest using complaint feedback loops from other major ISPs to manage sender reputation.
Marketer from Email Geeks shares that the Charter.net feedback loop is no longer functional, or at least not functional at the moment.
Email marketer from Validity Knowledge Base states that they don't show one in their current lists of feedback loops available to email senders. They recommend monitoring blocklists to identify and address deliverability issues.
What the experts say1Expert opinion
Expert from Word to the Wise forums indicates Charter.net (Spectrum) no longer supports a functional feedback loop, citing changes implemented several years ago. Focus should be placed on robust authentication practices and maintaining low complaint rates through list hygiene.
What the documentation says3Technical articles
Documentation from ietf.org explains the requirements for Abuse Reporting Format (ARF) which feedback loops would follow. Provides information about technical specifications for FBL implementation but does not confirm whether Charter.net is operating an FBL.
Documentation from Spamhaus provides information on general feedback loop practices and blocklist monitoring. While it does not specify Charter.net's FBL status, it offers guidance on maintaining sender reputation and identifying deliverability issues.
Documentation from Return Path indicated that Time Warner Cable (now Charter Spectrum) discontinued its feedback loop program in 2016-2017. Focus on authentication and engagement metrics for delivery.