How much mail can yahoo can save

A interesting question!

To estimate how much mail Yahoo can save, we need to consider a few factors:

  1. Number of users: Yahoo has a large user base, with over 250 million monthly active users (MAU) as of 2020.
  2. Email volume: The average user sends and receives a significant number of emails daily. According to a study by Radicati Group, the average user sends and receives around 121 emails per day.
  3. Mail server efficiency: Yahoo's mail servers are designed to handle a large volume of emails efficiently. However, even with efficient servers, there may be instances where emails are duplicated, delayed, or lost in transit.

Assuming an average user sends and receives 121 emails per day, and considering Yahoo's large user base, we can estimate the total number of emails sent and received daily:

250,000,000 MAU * 121 emails/day = 30,250,000,000 emails/day

Now, let's assume that Yahoo's mail servers can save around 5% of these emails due to various reasons such as:

5% of 30,250,000,000 emails/day = 1,512,500,000 emails/day

This means that Yahoo's mail servers can potentially save around 1.51 billion emails per day, which translates to:

1,512,500,000 emails/day * 365 days/year = 552,312,500,000 emails/year

Over the course of a year, Yahoo's mail servers can save approximately 552 billion emails. This is a significant number, considering the average email is around 1-2 kilobytes in size. This translates to a potential savings of:

552,312,500,000 emails/year * 1.5 kilobytes/email (avg.) = 828,465,750,000 kilobytes or 828.5 terabytes (TB) of data per year

To put this into perspective, 828.5 TB is equivalent to:

While this is an estimate, it gives you an idea of the potential savings Yahoo's mail servers can achieve by reducing the number of emails sent and received.