Yes, umail2.com can receive emails.
No, umail2.com 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
104.28.11.10
MX records
mxa.mailgun.org
35.165.89.52
mxb.mailgun.org
35.165.89.52