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Nowadays, Outlook has become the preference of most users because it offers various useful features for users. One of these features is the offline use of email data because this user needs to connect to Exchange Server. It is easy for them to access their e-mail without an Internet connection. However, the user sometimes receives an error message “Unexpected data was encountered, error code Outlook 2011 17997” at the time of connecting Outlook 2011 to Exchange Server. If the user then checks the error log, he will notice that “mail could not be sent” with this error. Even sometimes, users receive a “Mac Outlook Error Code 17997” error message when they send an email from Outlook for Mac. In the next section, we will discuss the reason and the solution to solve the problem of sending or receiving error 17997 in Mac Outlook 2011.

Symptoms Of ‘Mac Outlook Error Code 17997’ :

The main symptom of this error code is the prompt for the error message after the failure to send mail. The error appears on the user’s screen as follows: “Unexpected data encountered error -17997” when connecting MS Outlook 2011 to Exchange can connect to the Exchange server and receive mail, but when sending, messages are stuck in Outlook with the error -17997 unexpected data was encountered.

Fix Unexpected Data Encountered Outlook 2011 Error Code 17997

Various solutions are presented below to correct error 17997 of Outlook Mac. They will help the user to easily send or receive all e-mail messages.

Solution 1:

The user can correct the error code by following the instructions mentioned:

1.Change the server name to URL to use OWA via the browser.

2.Check the default port to change the port to 422 in the Outlook 2011 settings.

Solution 2:

There is another way to resolve the error by rebuilding the server’s virtual directory on Exchange Server. This user must upgrade the Exchange Management Console to SP3 and can then rebuild the virtual directories.

Rebuilding Virtual Directories

To rebuild virtual directories, the user can reset the virtual directory on Exchange Server because when users reset a virtual directory, the chosen virtual directory is deleted and a new virtual directory is created with the default settings. The user can follow the following steps to reset the virtual directory.

There are some steps mentioned with which the user can reset the virtual directory of the Client Access server.

Step 1: The user can follow the method mentioned to reset the virtual directories for client access. However, before performing the process, users must have an authorization.

• Start by opening the Exchange Management Console on your system.
• Select Server Configuration >> Client Access.
• Choose the server client access name and right-click on it.

Step 2: Now select the option to browse the reset virtual directory for access and choose the name of the virtual directory that the user must reset >> Next. By default, different directories will be listed.

Step 3: After adding the selected directory to the list of virtual directories to reset, click the following option.

Step 4: Browse the path and file name to specify the >> Next file.

Note: The user can use the same settings to rebuild the virtual directory. By default, all log files will be copied to the Client Access server document folder.

Step 5: Select the reset button in the virtual reset client access >> Finish directory.

Step 6: Reset Internet Information Services (IIS) by running the following command, that is, iireset / noforce at the command prompt.