Email-based e-commerce

1. A system for facilitating payments from a customer client device to a vendor client device, comprising a payment gateway and a network interface:

the electronic payment gateway comprising:

a memory storing a database of information that includes at least:

an identifier of a customer;

an email address of the customer; and

an identifier of a product offered by a vendor;

a processor configured to generate a first Simple Mail Transfer Protocol (SMTP) email message, the first SMTP email message being addressed to the email address of the customer and includes a visible SMTP mailto link associated with the at least one product, wherein the visible mailto link includes non visible information including an email address of the system, a unique identifier associated with the product, and the identifier of the customer; wherein the visible mailto link is configured to, upon selection by a customer on a customer client device, generate a second SMTP email message, that is addressed to the email address of the system and includes the identifier of the customer and the unique identifier associated with the product; and

a network interface configured:

to transmit the first advertising SMTP email message from the e-commerce system to a customer client device; and

to receive the second SMTP email message from the customer client device;

wherein the second SMTP email message indicates an order by the customer for the product, is responsive to the customer selecting the visible mailto link using the customer client device, is addressed to the email address of the e-commerce system, and includes the identifier of the customer and the unique identifier the product; and

the processor and the network interface are further configured to perform an order execution procedure based on the received second SMTP email message, wherein the order execution procedure includes purchasing the product for the customer from the vendor client device.

2. The e-commerce system of claim 1 , wherein the network interface is further configured to perform the order execution procedure by transmitting one or more messages to a payment processing system.

3. The e-commerce system of claim 2 , wherein:

the database is further configured to store credit card information of the customer; and

the payment processing system is a payment gateway that is operated by a financial institution.

4. The e-commerce system of claim 1 , wherein the network interface is further configured to perform the order execution procedure by communicating with an order fulfillment system.

5. The e-commerce system of claim 1 , wherein:

the processor is further configured to determine, in response to the second SMTP email message, whether an order confirmation procedure should be performed; and

the processor and the network interface are further configured to perform the order confirmation procedure in response to a determination that the order confirmation procedure should be performed.

6. The e-commerce system of claim 5 , wherein the at least one processor is further configured to determine whether the order confirmation procedure should be performed based on one or more of: the identifier of the customer; the identifier of the product; or an identifier of the vendor.

7. The e-commerce system of claim 5 , wherein:

the processor is further configured to generate a confirmation SMTP email message,

wherein the confirmation SMTP email message requests the customer to confirm the second SMTP email message,

wherein the confirmation SMTP email message is addressed to the email address of the customer, and

wherein the confirmation email message includes a second mailto link which includes the email address of the e-commerce system; and an order identifier associated with the second SMTP email message;

the network interface is further configured:

to transmit the confirmation SMTP email message; and

to receive a confirmation response SMTP email message,

wherein the confirmation response SMTP email message is responsive to the confirmation email message, is addressed to the email address of the e-commerce system, and includes the order identifier and information that indicates whether the order is confirmed or canceled; and

the processor is further configured to determine whether the order execution procedure should be performed based on whether the order is confirmed or canceled.

8. An electronic commerce (e-commerce) system for communicating with a customer client device and a vendor client device, comprising:

an electronic payment gateway comprising:

a memory for hosting a database configured to store information that includes at least:

an identifier of a customer;

an email address of the customer; and

an identifier of a vendor;

a processor configured to generate a first Simple Mail Transfer Protocol (SMTP) email message, the first SMTP email message including a payment amount,

wherein the first SMTP email message is addressed to the email address of the customer, and includes a visible SMTP mailto link associated with the payment amount, wherein the visible mailto link includes:

non visible information including at least one field that includes an email address of the e-commerce system, a unique identifier associated with the payment amount; and the identifier of the customer; wherein the visible mailto link is configured to, upon selection by a customer on a customer client device, generate a second SMTP email message that is addressed to the email address of the e-commerce system and includes the identifier of the customer and the unique identifier of the payment amount; and

a network interface configured:

to transmit the first SMTP email message from the e-commerce system to a customer client device; and

to receive the second SMTP email message from the customer client device;

wherein the second SMTP email message comprises a confirmation by the customer to pay the payment amount, is responsive to the customer selecting the visible mailto link using the customer client device, and is addressed to the email address of the e-commerce system, and

wherein the second SMTP email message includes the identifier of the customer and the unique identifier the payment amount; and

wherein the processor and the network interface are further configured to transmit the payment amount from the customer to the vendor based on the received second SMTP email message.

9. The e-commerce system of claim 8 , wherein:

the database is further configured to store credit card information of the customer; and transmission of the payment amount from the customer to the vendor comprises debiting the customer's credit card.

10. The e-commerce system of claim 8 , wherein:

the processor is further configured to determine, in response to the second SMTP email message, whether transmission of the payment should be performed; and

the processor and the network interface are further configured to execute a confirmation procedure in response to a determination that the transmission of the payment should be performed.

11. The e-commerce system of claim 10 , wherein:

the processor is further configured to generate a confirmation SMTP email message,

wherein the confirmation SMTP email message includes a solicitation for the customer to confirm the second SMTP email message, is addressed to the email address of the customer, and includes a second mailto link, wherein the second mailto link includes:

a second destination address field that indicates the email address of the e-commerce system; and

a second field that indicates a payment identifier associated with the second SMTP email message;

the network interface is further configured:

to transmit the confirmation SMTP email message; and

to receive a confirmation response SMTP email message,

wherein the confirmation response SMTP email message is responsive to the confirmation email message,

wherein the confirmation response SMTP email message is addressed to the email address of the e-commerce system, and

wherein the confirmation response SMTP email message includes the payment identifier and information that indicates whether the payment is confirmed or canceled; and

the processor is further configured to determine whether the payment execution procedure should be performed based on the information that indicates whether the payment is confirmed or canceled.

12. An electronic commerce (e-commerce) system for communicating with a customer client device and a vendor client device, comprising:

an electronic payment gateway comprising:

a memory for hosting a database configured to store information that includes at least:

an identifier of a customer;

an email address of the customer; and

an identifier of a vendor;

a processor configured to generate a first Simple Mail Transfer Protocol (SMTP) email message, the first SMTP email message including at least one payment amount,

wherein the first SMTP email message is addressed to the email address of the customer, and

wherein the first SMTP email message includes a visible SMTP mailto link associated with the payment amount, wherein the visible mailto link includes:

non visible information including an email address of the e-commerce system, a unique identifier associated with the payment amount, the identifier of the customer and the identifier of the vendor; wherein the visible mailto link is configured to, upon selection by a customer on a customer client device, generate a second SMTP email message that is addressed to the email address of the e-commerce system and includes the unique identifier associated with the payment amount, the identifier of the customer, and the identifier of the vendor; and

a network interface configured:

to transmit the first SMTP email message from the e-commerce system to a customer client device; and

to receive the second SMTP email message from the customer client device;

wherein the second SMTP email message is responsive to the customer selecting the visible mailto link using the customer client device, is addressed to the email address of the e-commerce system, and indicates the desire of the customer to pay the payment amount; the second SMTP email message including the identifier of the customer and the unique identifier of the payment amount; and

wherein the processor and the network interface are further configured to transmit the payment amount based on the received second SMTP email message.

13. The e-commerce system of claim 12 , wherein transmitting the payment amount comprises the network interface is further configured to transferring funds from the customer to the vendor.

14. The e-commerce system of claim 13 , wherein:

the database is further configured to store credit card information of the customer; and transferring funds from the customer to the vendor includes debiting the credit card of the customer.

15. The e-commerce system of claim 12 , wherein:

the processor is further configured to perform a payment confirmation procedure.

16. The e-commerce system of claim 15 , wherein:

the payment confirmation procedures includes transmission of a payment confirmation SMTP email message which requests that the customer confirm the payment indicated in the second SMTP email message,

wherein the payment confirmation SMTP email message is addressed to the email address of the customer and includes a second mailto link including:

a second destination address that indicates the email address of the e-commerce system; and a payment identifier associated with the second SMTP email message;

the network interface is further configured:

to transmit the payment confirmation SMTP email message; and

to receive a payment confirmation response SMTP email message,

wherein the payment confirmation response SMTP email message is responsive to the confirmation SMTP email message,

wherein the payment confirmation response SMTP email message is addressed to the email address of the e-commerce system, and

wherein the payment confirmation response SMTP email message includes the order identifier and information that indicates whether the order is confirmed or canceled; and

the processor is further configured to determine whether the order execution procedure should be performed based on the information that indicates whether the order is confirmed or canceled.

17. An system for communicating with a customer client device and a vendor client device, comprising:

a memory for storing information that includes at least:

an identifier of a customer;

an email address of the customer; and

an identifier of a vendor;

a processor configured to generate a first Simple Mail Transfer Protocol (SMTP) email message, the first SMTP email message setting forth at least one payment amount, is addressed to the email address of the customer, and includes a visible SMTP mailto link associated with the at least one payment amount, wherein the visible mailto link includes:

non visible information including an email address of the e-commerce system, a unique identifier associated with the payment amount, the identifier of the customer and the identifier of the vendor; wherein the visible mailto link is configured to, upon selection by a customer on a customer client device, generate a second SMTP email message, that is addressed to the email address of the system and includes the identifier of the customer, the unique identifier associated with the payment, and the identification of the vendor; and

a network interface configured to transmit the first SMTP email message from the system to a customer client device; and to receive the second SMTP email message from the customer client device;

wherein the second SMTP email message confirms an order by the customer for the payment, is responsive to the customer selecting the visible mailto link using the customer client device, and is addressed to the email address of the e-commerce system, and includes the identifier of the customer, the unique identifier the payment, and the identification of the vendor; and

wherein the processor and the network interface are further configured to perform execution of the payment based on the second SMTP email message, wherein execution of the payment includes transferring funds from the customer to the vendor.

18. The e-commerce system of claim 17 , wherein:

the database is further configured to store credit card information of the customer; and transferring funds from the customer to the vendor includes debiting the credit card of the customer.

19. The e-commerce system of claim 17 , wherein:

the processor is further configured to perform a payment confirmation procedure.