“The first message the Internet sent was ‘L' and ‘O'. At 10:30 pm, Oct. 29, 1969,
Kleinrock, in Los Angeles, A message was sent to Bill Duval at Stanford University. This
was a five-letter word: Login. After entering “Lo", the system broke down. The instrument
showed that the transmission system collapsed. Therefore communication was forced
to stop. The world's first communication test through the Internet only transmitted two
letters, which were “Lo", marking the creation of the rudiment of the Internet based on
The transmission of a string of words opened the door to the Internet, thus beginning
the booming development of the Internet. In the Crypto World, we also hope to take
information transmission as a starting point and promote a leapfrog development of
applications in the blockchain ecosystem. Therefore, we established a decentralized
version of NFT mail application called "Pmail."
Based on features of Web3.0 and Dfinity (Internet computer) technology, with mail
application as the entrance, Pmail lowers the threshold for users and developers to
participate in the Crypto World by enabling smooth transmission of information between
traditional mail and blockchain mail, users hereby can use blockchain as if they use the
Internet. We hope that Pmail serves as a basic portal to the blockchain world and a
gateway to the real world in the future.
II. Product overview
To solve problems of interaction, communication and information sharing between
on-chain and off-chain users, we developed a distributed application called
Pmail is the first mail application based on Web3.0 and Dfinity technology that
integrates NFT and distributed storage functions, and is dedicated to building
a bridge between the traditional world and the parallel world. Compared with
traditional mail, Pmail gives rights of control back to users. Users can manage
and access data with their private keys, and can also determine the future trend
of the product through community Governance. Pmail is committed to providing
users with a permanent service without a centralized server, and meanwhile
ensuringe the ownership and privacy of data.
Pmail is the foundation of communication, information sharing and collaboration
of on-chain and off-chain users in the future. Specifically, it will serveas the basic communication and cooperation tool of the blockchain world, and the
gateway for information exchange between the blockchain world and the real world. As
an information interaction gateway in the new era, it will help users connect the whole
blockchain world and the real world, and help users, developers, institutions and assets
to build reliable interactive connection and build an information storage space that will
never be lost in the blockchain world. In this way, we believe that it can better serve the
blockchain world and the real world, and enables everyone an access to an equal access
to different worlds
2.1 Basic realization
2.1.1 On-chain mail address
Pmail provides unique on-chain mail addresses, through which mails and assets are
received and sent.
2.1.2 On-chain mail distributed storage
Through distributed storage technology and authorized encryption technology, Pmail
ensures the security of mails and information stored in cloud.
2.1.3 On-chain and off-chain Interaction
Pmail links the information exchange between the blockchain world and the real world,
and realizes rapid information exchange between on-chain and off-chain users.
2.1.4 On-chain authorization
Through on-chain authorization, users can carry out security authentication, mail
encryption, asset swap, real-world encrypted information exchange and ownership
2.1 Basic realization
2.2 Underlying architecture
The current stage of Pmail is based on the underlying architecture of Dfinity, using
blockchain authentication mechanism, distributed data storage and other technologies to
provide mail services. The main feature of Pmail is linking the blockchain world and the
real world, More real world users can interact with their counterparts in the blockchain
world easily. Both sides can enjoy blockchain functions in an easier way. We hope that
Pmail becomes a basic portal to the blockchain world and an underlying gateway to the
real world in the future.
2.3 Standard protocol
At present, the most widely used email system adopts MIME standard protocol to deal
with multi-type emails. Mails are mature enough to address information transmission,
and various types of data can be included in an independent email, files, Pictures, audio,
video,scripts, and chart and etc could be included.
However, with the development of the era of Web3.0, traditional emails did not catch up
with the upgrading of the blockchain. Hence, Pmail has done a lot of research to solve
this problem, hoping to bridge the Web3.0 era and traditional Internet in a new way so as
to help more traditional Internet users to access blockchain with lower barrier of entry.
Pmail is improved on the basis of SMTP protocol, and a new application is added on the
basis of MIME type Standard to combine the blockchain and e-mail. A complete block
chain data structure is defined on the basis of RFC8555 protocol to solve the above
issues. Pmail is submitting the standard and solution to the IANA and the U.S. Patent
Office for a new U.S. technology patent.
2.4 Basic function
2.4.1 Unique identity
Unique identity is Pmail's basic authentication feature. The identity information is updated
according to the information authorized by users. Users can create their own unique
mail name to communicate and interact with other users. Privacy will be ensured, and the
spam will be filtered.
2.4.2 Mail function
It provides basic functions as traditional mail such as receiving and sending mails,
sending attachments, sending assets, etc. Users can send such information as assets
(Token and NFT) through alias mode or blockchain ID mode.
In addition to the sending and receiving between on-chain mails, Pmail can also transmit
information and assets between traditional mails and blockchain mails, which is our
original product feature.
2.4.3 Asset function
The Pmail mail can define any mail of a user as an asset, and can also store users'
encrypted assets and NFT assets. With this feature, users can manage their assets,
including storage and transmission
2.4.4 NFT mail
Pmail was the first project to create NFT mails. In Pmail, we expanded form of NFT.
Each mail address is an NFT. As such, mail is not only a communication tool, but also an
invaluable asset. User's mail account can be traded anytime as an NFT asset, and those
mail addresses with special meanings may be worth more in the market.