Sendgrid announced their volumes for Black Friday and Cyber Monday:
To provide a clearer understanding of our scalable systems, on Black Friday 2019 we processed 4.1 billion emails and this Cyber Monday we processed 4.2 billion emails (46% more than 2018) and processed up to 315 million emails/hour (burst rate) into inboxes all around the world! To give you a better understanding of this scale, you can get to the moon and back 4 times in fewer yards than the number of emails we sent on Black Friday.
That’s more than double the volume they sent in 2017.
I expect other large senders did similar volumes, which makes the total amount of email over the last week mind blowingly huuuugee.
How much mail did you send?