I had to migrate my WP site over to a new hosting company about two weeks ago. Ever since then, I've been bombarded with emails of new subscribers or "new user registrations" to my site. This has never happened before and after peeking into my list of users I see I have over 4,000 subscribers to my blog. Not that I'm complaining, but I notice a lot of the emails I'm getting every day now (about 20-30) seem like they are spam-like in origin. Just subscribers with odd domain names and such.
Is this anything to worry about? I manually approve all comments on the site and I haven't seen any weird ones coming in lately. Are these legitimate people or just spammers? If they are spammers, what is their intent? Should I be disabling subscribers to my site? Heck, I can't even figure out where they are subscribing FROM on my site:
What do you guys all think about this?