Added email filter to default config and fixed formatting.
Added email filter to default config and fixed formatting.

cganas/picoCTF-web,picoCTF/picoCTF-web,picoCTF/picoCTF-web,cganas/picoCTF-web,picoCTF/picoCTF-web,cganas/picoCTF-web,cganas/picoCTF-web,picoCTF/picoCTF-web