Yes, gaggle.net can receive emails.
No, gaggle.net is a throwaway domain and should be blocked.
You can use MailCheck's free API to automatically block throwaway emails. Read our documentation to get started. No registration required.
A record
104.198.69.90
MX records
mail.gaggle.net
162.216.126.241
mail2.gaggle.net
162.216.127.242
nullmx.gaggle.net
162.216.126.252