Beginner guide to website email addresses and domain mail

A mailbox and an alias are different

A mailbox stores messages and normally has login credentials. An alias forwards or maps an address to another destination and may not have its own storage.

MX records direct incoming mail

Mail exchangers published in DNS tell sending systems which servers accept email for the domain. Changing nameservers without preserving MX records can interrupt mail even when the website move is successful.

Sending uses a separate path

SMTP or an email provider’s sending service handles outgoing messages. Domain authentication such as SPF and DKIM should match the services that actually send mail.

Website forms need deliberate delivery

A contact form can say “sent” even if the notification never reaches the business. Test form delivery and use a reliable sending method for messages that affect customers or sales.

Separate mailbox creation from message delivery

Creating hello@ or support@ is only the account step. Reliable mail also depends on MX routing, sending configuration, authentication records, device settings and enough mailbox storage for the people using it.

Test both directions with an external mailbox and confirm password-recovery messages reach the intended owner. A professional-looking address is useful only when the underlying mailbox can be recovered and messages actually arrive.

Common questions