Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

FIX: POP3 and IMAP4 are not supported to use TLS protocol 1.1 or 1.2 in Exchange Server 2013


View products that this article applies to.

Symptoms

In a Microsoft Exchange Server 2013 environment, POP3 and IMAP4 are not supported to use Transport Layer Security (TLS) protocol 1.1 or 1.2.

↑ Back to the top


Cause

By design, POP3 and IMAP4 in Exchange Server 2013 support only earlier versions of TLS, including TLS protocol 1.0.

↑ Back to the top


Resolution

To fix this issue, install Cumulative Update 11 for Exchange Server 2013.

↑ Back to the top


Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

↑ Back to the top


References

Learn about the terminology that Microsoft uses to describe software updates.

↑ Back to the top


Keywords: kbsurveynew, kbnotautohotfix, kbqfe, kbfix, kbexpertiseinter, kb

↑ Back to the top

Article Info
Article ID : 3106475
Revision : 1
Created on : 1/7/2017
Published on : 12/15/2015
Exists online : False
Views : 161