Why does it sometimes take a long time to deliver an eMail message?
We have come to expect eMails to take seconds to be delivered. We often regard eMails as an instantaneous method of communication. Almost like a telephone call. We then are very surprised if an eMail takes over one hour to deliver. But did you know it can take days? This article gives the reasons for the speed of delivery and also the reasons why delivery can take days. Overview of eMail Delivery Pressing the Send Button After the eMail has been written composed and spell checked the send button is pressed. This causes the eMail to be sent from the PC to a mail host known as a SMTP (Simple Mail Transfer Protocol) sever. Sender’s SMTP host Locates the Recipient’s SMTP host’s IP Address If the sender’s domain name if different from the recipient’s domain name the SMTP host cannot deliver the eMail to the recipient. It needs to pass the message onto an SMTP host that knows how to deliver the message. The sender’s SMTP host tries to find the IP (Internet Protocol) address of the recipient’
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