Yes, firstcapitalfibers.com can receive emails.
No, firstcapitalfibers.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
23.236.62.147
MX record
firstcapitalfibers-com.mail.protection.outlook.com
104.47.50.36