On September 30, 2010, MailChannels CEO Ken Simpson talked about conventional anti-spam techniques are ineffective at stopping outbound spam. In video 3 of a 5-part series, he answered:
How are service providers trying to stop outbound spam?
– Using inbound anti-spam techniques for scanning outgoing email
– Blocking port-25
– Blocking entire IP ranges
– Manual handling by support staff
Learn more about the Outbound Spam Challenge.