How Is A Email Transferred ? all you need to know about email

[longtimeago 0]

Now let us look at how a email is transfered form the sender to the reciever.Now this involves some protocalwhich you may have to browse and look for the working of those protocal however i have tried to explain them tooNow the sender sends an Email and the Reciver recives it. How is this done ? The sender types the email in themail user agent . this is the outlook express in windows or ththunderbird in linux. But now all the well knowemail servers has inbuilt mail user agent so that you need not use one seperately.Now when the email is sent it reaches the mail server of the sender that is the senders mail server from themail user agent. This is done using the SMTP .SMTP is simple mail transfer protocal and this is used in most of the mail transfers.Now the mail has reached the senders mail server. From the senders mail server the mail is being transferredto the recivers mail server and this is done again by using SMTP protocalAt this point dont be confused what is a protocal.Protocals are nothing but a set of Rules.Now the mail has been recieved at the recivers mail server from the senders mail server.Now the work of the reciversmail server is that to ensure delivery to the reciver mail user agent. This is done only when the reciver request for the mail and then the mail is Given to the reciver.This is done by using either of the two protocals i) POP3ii) IMAPPOP3 was used in older days and still some mail servers uses pop3 protocal and this is nothing but POST OFFICCE PROTOCAL 3 and in this case the mail is actually transferrd from the recivers mail server to the recivers mail useragentBut the Drawback is that there is a possiblitty of a hacker to hack into this transfer.So modern mail servers likeGMAIL uses IMAP.Here in IMAP the mail is not transferred between the mail server of the reciver and the mail user agent of the reciver but just a connection is established between and the mail useragent reads directly from the serverThis is how a mail is sent and recieved accross the internet.

[imbibe 0]

And one more important pointEmail works as a connection-less service. What this means is that when mail is transferred from sender to receiver no connection is established between the two parties. And so you never know whether your mail got delivered or not