Your company has an Exchange Server 2016 organization. The organization contains 2,000
mailboxes and five Mailbox servers, including one server named EX1. Five hundred users retrieve
email from their mailboxes by using an IMAP4 client application from the Internet. The users also
connect to EX1 to send email messages. All of the email messages are secured by using TLS. An
administrator recently replaced the company’s firewall. Users now report that they fail to send email
messages from the IMAP4 client application. You verify that the users can retrieve email messages
form their mailbox successfully. You need to recommend which TCP port must be allowed so thatNew VCE and PDF Exam Dumps from PassLeader
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the users can send email messages from the IMAP4 application successfully. Which TCP port
should you recommend?
A.
443
B.
587
C.
993
D.
995
Explanation:
https://technet.microsoft.com/en-us/library/jj657728(v=exchg.160).aspx
993 for secure imap connections
C
https://kb.intermedia.net/article/824
“Users now report that they fail to send email
messages from the IMAP4 client application. You verify that the users can retrieve email messages”
993 is used for retrieving IMAP e-mail. 25, 465 or 587 are used for secure SMTP (outgoing e-mail). B is the correct answer (see the very bottom of the article linked by user “test”).