A network administrator configures an email server to use secure protocols. When the upgrade is completed, which of the following ports on the firewall should be configured to allow for connectivity? (Choose three.)
A. TCP 25
B. TCP 110
C. TCP 143
D. TCP 389
E. TCP 587
F. TCP 993
G. TCP 995
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Various ports that are used for secure email transmission using TLS/SSL are given below:
995 TCP – Post Office Protocol 3 over TLS/SSL (POP3S) (Official)
993 TCP – Internet Message Access Protocol over SSL (IMAPS) (Official)
587 TCP – e-mail message submission (SMTP)