What is an Advertisement?

A commercial message targeted to an advertiser’s customer or prospect.

E-mail Bounce or Bounce in online advertisnment

An e-mail that cannot be delivered to the mailbox provider and is sent back to the e-mail Service Provider that sent it. A bounce is classified as either “hard” or “soft.” Hard bounces are the failed delivery of e-mail due to a permanent reason, such as a non-existent address. Soft bounces are the failed delivery of e-mail due to a temporary issue, such as a full inbox or an unavailable ISP server.

Ref #IAB

Demand side platform - What is DSP?

A demand side platform (DSP), also called buy side optimizer and buy side platform is a technology platform that provides centralized and aggregated media buying from multiple sources including ad exchanges, ad networks and sell side platforms, often leveraging real time bidding capabilities of these sources.

Ref : #IAB