In EMAIL, We need two VAs and two pairs of MTAs, When sender is connected to mai

In EMAIL, We need two VAs and two pairs of MTAs, When sender is connected to mail server via

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1) SMTP uses the TCP port

2) A session may include

3) At beginning of Internet era, messages sent by electronic mail were short and consisted of

4) If you have to send multimedia data over SMTP it has to be encoded into

5) Post Office Protocol, version 3 (POP3), has two modes, Delete Mode and