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You canВ learn more about the inner workings of email delivery with these resources: The ability to retain and sync messages on multiple devices is why most email services today use IMAP instead of POP.Д®mail involves many different steps and systems. The messages remain on the server, and when the status of one changes (for example, itвЂ™s read or deleted), that change propagates across all devices when they connect again. When the recipient uses IMAP, the server syncs the contents of the mailbox, including its Sent Items and other folders, to each device that connects with it. If the server doesnвЂ™t have copies of the emails and the recipient suffers a hardware loss or failure, those messages are gone forever, unless the senders have copies of them. When the recipient uses POP, the server delivers all new emails to them and only keeps copies of them if an option in the email client is checked, if applicable.

#TO BE SENT OR TO BE SEND SOFTWARE#

But when recipients use a stand-alone email client on a phone or desktop computer, that software uses standard protocols to download messages fromВ mail servers. Web-based email services like Gmail or Hotmail/ use their own internal protocols to manage email.

The recipientвЂ™s email client retrieves the message using standards like theВ Post Office Protocol (POP) or Internet Message Access Protocol (IMAP) to download the message so it can be read.

The receiving server accepts the messageВ so that it can be delivered to theВ recipient. The sending and receiving servers communicate using the SMTP protocol.The senderвЂ™s mail server (technically called a вЂњMail TransferВ Agent,вЂќ orВ MTA) looksВ up the portion of theВ recipientвЂ™s email address in aВ Domain Name System (DNS) server to determine which destination mail server (referred to asВ a вЂњMail Exchanger,вЂќ or MX) it should contact to deliver the message.In both cases, whetherВ the message is created by an email client or by an automated system, itВ is specially formatted to be transmittedВ over the InternetВ using a standard called вЂњSimple Mail Transfer ProtocolвЂќ (SMTP).

#TO BE SENT OR TO BE SEND PASSWORD#

However, whenВ the message is a transactional email like a shipping notice or a password reset, the message is created automatically by those systems, usuallyВ using an email API.В (Marketing messages are generated by automated systems as well, although usually in large batches, rather than one at a time like transactional messages.).When an individual writes a message, itвЂ™s usually done in an email client like Outlook or Apple Mail-or in a web-based service like Gmail.

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ItвЂ™s these standards that allow us to send email messagesВ to virtually anyone.В When someone sends an emailВ message, it flowsВ through a series of steps to reach its destination. In those early days, users were limited to communicating only with others on the sameВ shared mainframeВ system.В However, the adoption of standardВ protocols and the interconnection of systems intoВ the shared network we now know as the Internet allowed different mail systemsВ to вЂњtalkвЂќ to each other. How does an email messageВ flow?Д®mail has been around since the 1960s, when the creators of nascent computer networks began devising ways to send messages to each other. Along the way, it passes through multiple servers that help ensure it arrives at the right place.В ThatВ email message flow uses aВ systematic process based on a number of long-established technical standards. For most users, how an email message flows from the sender to aВ recipientвЂ™s inbox is something that happens behind the scenes.В When an individual or an organization sends an email, the message travelsВ from its point of origination, such as an email client where it was composed, across the Internet to its destination.

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