Average Message Size
Partly because of the increase in bandwidth but also as a result of the desire for fuller, richer multimedia experiences (for example, singing and dancing PowerPoint presentations), the average email is getting bigger. Where three or four years ago it was normal to have 10-kilobyte messages with occasional 100-kilobyte messages traversing the messaging system, today those figures are noticeably larger—somewhere around 25 to 30 kilobytes average message size, with occasional multimegabyte (one megabyte plus) messages appearing more frequently. Older models for messaging systems that were fine during the days of dial-up Internet where a 10-kilobyte email would take a minute to send just do not apply today.
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