Typically the TCP port used by SMTP is
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1) NVT Stands for
2) FTP uses services of
3) In EMAIL, We need two VAs and two pairs of MTAs, When sender is connected to mail server via
4) Post Office Protocol, version 3 (POP3) is simple and limited in
5) Which one of the following is an SMTP server configured in such a way that anyone on the internet can send e-mail through it?