I'm using Mozilla Thunderbird and have for years. I often take the advice contained in comment notifications: "You can reply to this comment via email as well, just click the reply button in your email client." But in the past week, my reply is also including the senders' confidential information, which I then have to remove by editing their comment. This all just started in the past 7-10 days.
The blog I need help with is paulwilkinson.wordpress.com.