[Wordpress issuses] bitemefanboy on "Preventing "Spammers" from being notified of new Posts"

I've recently begun to receive lots of notifications that so & so is now following my blog. Unfortunately many appear to be spammers. Today brought the following notifications.

cruz_orell​ana474@133​.cashadvan​cezip.com is now following your blog
brooke_cor​dova4518@1​32.cashadv​ancezip.co​m is now following your blog
brenda.coo​n4375@131.​cashadvanc​ezip.com is now following your blog
raquel.str​auss4614@1​30.cashadv​ancezip.co​m is now following your blog
dorthea.ty​ree7756@12​9.cashadva​ncezip.com is now following your blog
autumnflem​ming5138@m​ailnesia.c​om is now following your blog

Sure sounds like spam to me, but Is there anyhting I can do to prevent this from happening? Is there any way that when I do post that these "people" are not notified?

Thanks!

The blog I need help with is bitemefanboy.wordpress.com.

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