Can you please explain why I frequently get 'replies to a blog' in my private email which are obviously spam, and often not my posts anyway, but the same comments don't appear on the actual blog? I can do nothing about them, except delete because there's no way I'm going to click on them or use their email address – but I don't understand how they come through to me.Also, I need to get out more – not sit in front of this screen!