I second that. At work we run our own email server (50 people company). I receive single spam message maybe like once in two weeks. With a Gmail home account I have that once in a month.
A slightly more problematic is targeted phishing attacks, where the attackers try to put at least some work-relevant information “. Some of those attempts are not so trivial. I do receive them few times per year, while with GMail I do not remember getting one in at least a year. But on other hand I am not so sure that Google will defend against those if we have used GMail at work.
