Troubleshoot Exchange Server is Unavailable Issue: Top 3 Solutions

Nowadays, email is considered one of the most popular and integral communication tools. Microsoft Outlook is a widely demanded email client application across the world. It works in conjunction with the Exchange Server for all its email-based communication. One can also say that Exchange is an email server solution designed by Microsoft and is deployed on the Windows Operating system. It is a piece of software that runs on a server and manages all the emails. This powerful server-side application offers an efficient email-based collaborative communication by allowing the users to access data without any hassle from anywhere. However, Exchange users have also faced different errors while working with it. One of the common error that encounters frequently on Exchange while working with Outlook is Exchange Server is Unavailable. Outlook must be online or connected to complete this action. Moreover, it is important to resolve any type of error to avoid serious issues. Therefore, in this write-up, we are going to explain different methods using which the user can easily eliminate Exchange Server is not available issue.

Possible Causes: This particular error is encountered when the user tries to start MS Outlook in Office 365. Due to this error, the user is not able to access the server’s mailboxes and the data items stored in it. There can be some other potential causes behind the occurrence of Exchange Server is Unavailable error in Outlook 2010, 2013, 2016. Some of them are listed below:

• Outlook is not configured properly
• An issue with the network connection
• Incorrect configuration of Outlook profile
• Default gateway configuration missing in the client application
• Locked Office Outlook files
• Interference of third-party applications while connecting Outlook to Exchange Server
• Corruption of PST files

Different Solutions to Fix Exchange Server is Unavailable Error

The user can implement the solutions given below to resolve Exchange Server is not available Error in Outlook 2010, 2013, 2016. It is necessary to eliminate the issue as this will prevent the occurrence of other serious issues.

Solution 1: Fix the Network Connectivity Issue

There should be a healthy network connection between the local client system and the Exchange Server. Due to an improper network connection, Exchange Server is Unavailable. Outlook must be online or connected to complete this action error occurs. To resolve this error the user has to diagnose client connectivity issues using Microsoft‘ s Connectivity Analyzer Tool. Follow the steps to fix this issue.

1. First, you have to install the Microsoft Connectivity Analyzer Tool on your system and then launch it
2. Once the tool is installed on your system, choose I can’t log on with Office Outlook option
3. After that, insert your Simple Mail Transfer Protocol address and login credentials also
4. View and check the results. If this issues only occurs for a single mailbox in Exchange Server then create a new Outlook profile
5. Check the issue is fixed or not. If the issue is not fixed or the multiple users are affected then contact Online Service Support for Microsoft. Make sure to gather some information related to:

• When this issue occurred?
• The output of ipconfig/ all, ping, and tracert commands from the client to destination
• The output of telnet command on two different port numbers that are 135 and 443 from client to destination
• Issue encountered in a specific ‘Office network segment’ or on a particular ‘Exchange mailbox server’
• The output of Microsoft’s Remote Connectivity Analyzer Tool

Solution 2: Check whether third-party applications are interfering or not

Sometimes, the third-party applications such as anti-virus programs, software etc. are responsible for the Exchange Server is Unavailable. Outlook must be online or connected to complete this action error. There is a conflict between the third-party applications and Outlook connecting to the Exchange Server. To resolve this issue the user should start Outlook in ‘safe mode’.

While implementing the above steps, many users have faced data loss issues. Therefore, to resolve the issue without any data loss it is recommended to opt for a professional solution. For non-technical users it becomes difficult to perform the manual steps in an accurate way. As a result of which they have to face data loss problems. Thus, to avoid all the catastrophic situations switch to the solution given below.

Solution 3: Recommended Solution to Fix Exchange Server is Not Available Issue

The users can easily resolve the error with the help of a trusted and efficient solution i.e. SysTools Outlook Recovery Tool. The tool is having a user-friendly interface which makes easy for the users to operate and work with the tool. Moreover, the software also allows the users to repair and recover the damaged data files. Both technical and non-technical users can work with this tool in a hassle-free way.

Summing Up

When any of errors are faced by the users, the situation becomes frustrating for them. Moreover, the errors also affect the performance of the operating system and there is a risk of data loss too. The Exchange Server is Unavailable. Outlook must be online or connected to complete this action issue is faced in Outlook 2016, 2013, 2010 by most of the users while working with Microsoft Outlook. Therefore, in the above section, we have explained different solutions including both manual and automated approach. It is suggested to the user to opt for a reliable and instant solution Outlook Recovery software. The tool will allow the user to fix all the issues in a seamless way without any data loss issue.