# Payment Addressing

Payment Addressing is the mechanism through which a wallet can, on behalf of a user making a payment transaction, discover the preferred Bitcoin output script of a receiver given only their paymail handle, in the form `<alias>@<domain>.<tld>`.

Payment Addressing is specified across a number of BRFCs:

* [Basic Address Resolution](/paymail/payment-addressing/basic-address-resolution.md)
* [Sender Validation](/paymail/payment-addressing/sender-validation.md)
* [Receiver Approvals](/paymail/payment-addressing/receiver-approvals.md)
* [PayTo Protocol Prefix](/paymail/payment-addressing/payto-protocol-prefix.md)

Only *Basic Address Resolution* is required in order for an implementation to carry the paymail branding.


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