Corporate Video: What is MailChannels doing about outbound spam? By Desmond Liao | 1 minute read On September 30, 2010, MailChannels CEO Ken Simpson talked about conventional anti-spam techniques are ineffective at stopping outbound spam. In video 4 of a 5-part series, he answered: What is MailChannels doing about outbound spam? – transparently intercepting port-25 traffic coming out of the network – passing it through one or more content filters – a reputation system that keeps track of local and global identity – policy management for flexibility Learn more about the Outbound Spam Challenge.