PUBLIC MARKS from arslan220 with tag "open rates"

I have been hearing this a lot lately from my clients and other fellow marketers that their open rates are falling. Though they have same kind of audience and same content. If you are experiencing same, you are not alone. You know, email marketing is still very effective, but it is changing. Specially, ISP spam filters are updating every now and then, and marketers really have to adapt to these changes in order to remain up to date.