Per their site, inbound and droplet-to-droplet in the same datacenter is free
https://www.digitalocean.com/community/questions/inbound-data-transfer-into-droplet
December 28, 2019 at 11:27PM
via reddit https://www.reddit.com/r/digital_ocean/comments/egzsbp/is_the_transfer_that_comes_with_a_droplet_only/fcc2idz?utm_source=ifttt