1. A system for identifying entities in email signature blocks, the apparatus comprising: one or more processors; and a non-transitory computer readable medium storing a plurality of instructions, which when executed, cause the one or more processors to: score each token, in a sequence of tokens from an email signature block, based on a plurality of entity types, wherein each token comprises one of a word, a punctuation symbol, and an end-of-line character; identify each entity sequence, in a plurality of entity sequences, which comprises a number of entities that matches a number of tokens in the sequence of tokens; identify an entity sequence with a highest score based on applying scores for each token in the sequence of tokens to each identified entity sequence; and output the sequence of tokens as an identified set of entities based on the entity sequence with the highest score.