What is the definition of Mailing Engineering?

Mailing engineering is like the unsung hero of the postal world, but instead of delivering letters, it's responsible for the delivery of digital mail – emails, data packets, and spam campaigns. It's the secret agent behind your inbox, orchestrating the flow of information (and sometimes, unwanted info) at lightning speed.

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Here's a gloomy example sentence using this term: "Last week, mailing engineering took over the world's email inboxes with a vengeance, sending spam campaigns that left more than just my email clients scratching their heads."