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Exam MS-203 topic 3 question 68 discussion

Actual exam question from Microsoft's MS-203
Question #: 68
Topic #: 3
[All MS-203 Questions]

You have a hybrid deployment that contains a Microsoft Exchange Online tenant and an on-premises Exchange Server 2019 server named Server1.

Server1 uses a certificate from a third-party certification authority (CA). The certificate is enabled for the SMTP service.

You replace the certificate with a new certificate.

You discover that delivery fails for all email messages sent from Server1 to your Microsoft 365 tenant.

You receive the following error message for all the queued email messages: “450 4.4.101 Proxy session setup failed on Frontend with 451 4.4.0 Primary target IP address responded with 451 5.7.3 STARTTLS is required to send mail.”

You need to ensure that the messages are delivered successfully from Server1 to the Microsoft 365 tenant.

What should you do?

  • A. Run the Exchange Hybrid Configuration wizard.
  • B. From Server1, run the iisreset command.
  • C. From Server1, enable the new certificate for the IMAP4 service.
  • D. From Server1, request a new certificate that support TLS.
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Suggested Answer: A 🗳️
by Forkbeard at Feb. 10, 2023, 5:24 p.m.

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pyramidhead
7 months, 4 weeks ago
Run the Exchange TLS IMAP Hybrid certificate
upvoted 1 times
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Forkbeard
8 months, 3 weeks ago
This is the fifth time this question appears in this topic, most of the time with the same answer - but not always.
upvoted 3 times
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