3-4 minutes is about right is say
A device connected to the internet is known as a Node.
a fraction
I think it is correct.
Hopefully it helps.
Answer:
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If a client initiates the SMTP communication using an EHLO (Extended Hello) command instead of the HELO command some additional SMTP commands are often available. They are often referred to as Extended SMTP (ESMTP) commands or SMTP service extensions. Every server can have its own set of extended SMTP commands.
