Cloudmark , a provider of messaging security solutions, has scored a massive $23 million funding round led by new investor Summit Partners and joined by Nokia Growth Partners , the mobile giant's venture capital investing arm. Existing investors Ignition Partners and Industry Ventures also participated in the round, which is the first financing Cloudmark has closed since 2004, when it raised $11 million from multiple VC firms. The new funding is said to have been used to assist in Cloudmark's acquisition of former rival Bizanga .