I rely on Kill the newsletter! to manage all my newsletter subscriptions, as I prefer reading them in my feed reader rather than my email app.
However, I’ve encountered an issue recently with Substack. They are not allowing me to subscribe using a kill-the-newsletter.com email address, stating that they cannot validate the email domain. This is quite disappointing. ☹️
I attempted to find information on how to validate an email domain on their support site, but there is no relevant information available. Even if there were, it wouldn’t make a difference since it’s not my domain.
Nevertheless, I still do not want those newsletters cluttering my email inbox, so I have decided not to subscribe for now…