Schedulers get emails for a variety of reasons. Shoppers have questions about shops, need to cancel shops, change dates on shops, have a closed location, wrong address, or want to know why their score was so low, etc. They you get the emails regarding the client with blackout dates and special requests, changes to the shops, emails from editors about particular shoppers, bonuses or exceptions that were granted. An email from MSF that that shoppers have sent you dozens of PMs, asking about an assignment you posted or replying to a thread you created. Most schedulers also get emails when assignment have not been turned in on time and then have to follow up with delinquent shoppers.
I kept track of my outgoing emails when I was a scheduler and under 500 was a light day. Most days were in the 600-800 range. Even if I just spent 30 seconds on a reply and worked constantly, without breaks, replying to 500 emails would take over 4 hours of time composing and sending the emails. You up the response time to 1 minute per email and it's over 8 hours, so next time you get a short response from a scheduler that seemed to take less than a minute of consideration, keep that in mind.
I kept track of my outgoing emails when I was a scheduler and under 500 was a light day. Most days were in the 600-800 range. Even if I just spent 30 seconds on a reply and worked constantly, without breaks, replying to 500 emails would take over 4 hours of time composing and sending the emails. You up the response time to 1 minute per email and it's over 8 hours, so next time you get a short response from a scheduler that seemed to take less than a minute of consideration, keep that in mind.