When the mail server for has received the mail, he adds received : from and delivers it to sohaibafifi's mailbox or gives it to another server if this would be needed.Įxample of such a chain: Received: by 10.42.195.134 with SMTP id ec6csp80279icb I wanted to trace the IP address by checking out the Received: by X field in the header of the sent message. Think of the email header as a flight ticket it can tell you who booked it (who sent the email), the departure information (when the email was sent), the route (from where it was sent and how it arrived to you) and arrival details (identity of receiver and when it was received). ![]() It has to look up the server that does via the MX Records for and then forward the mail to it. Someone has sent a sensitive email from my Gmail account. The mail header is the information that travels with every email, containing details about the sender, route and receiver. This server looks at the destination-address and sees it is. This server then adds received : from to the wants to send an email to creates an email and hands it to the mail server for. If the server has to hand it over to another server (because itself is not serving mail for the domain where the mail needs to go), it forwards it to the server that does. ![]() Mail starts at a client, this client sends it to the server.
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