Difference between SMTP & POP3

SMTP is the protocol (mechanism) used to get email from the sending computer all the way to the recipient’s email server. This could be at a company, an ISP, or a web mail hosting service (like Hotmail).

POP3 is the protocol used to download the email message from a mail server to a computer using an email client program (like Outlook). When you check your email, the messages are transferred to your computer and deleted from the server.

Web mail doesn’t use POP3, because the messages stay on the server. You are viewing them remotely.

POP3 is the incoming e-mail protocol. You receive e-mail through POP3.
SMTP is the outgoing e-mail protocol. You send your e-mail through SMTP.
Both of these are attributes of your ISP and their mail servers.

  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: