• MS- Outlook error code 998 is referred to as the common issue which the user receives while accessing the email account. The issue arises while sending or receiving the emails through Outlook application or while starting up the application. The root cause behind the problem to arise is due to the server issue; corrupted .PST files; damage items in the mailbox; incorrect login credentials; infected system; and many other reasons. The problem seems to be peculiar and thus need the urgent attention of the users. To fix the problem completely, you need to go through the online available blogs or contact the experts at Outlook Customer Care to obtain the information in the nick of time.