If this is not checked, the Mac Outlook email service will not be accessible. So, the user needs to check the network & internet connectivity. If the error code 17199 exists in Outlook 2011, then it can be due to the issues in internet connectivity. In case, the error still prevails, go for the next solution. You can now check for the prevalence of error by sending an email in Outlook. Now, exit the window and restart the software.Check for the Outgoing server & Incoming server settings.From the left pane, choose your email account in the upcoming window.Go to the Tools option & tap on the option Accounts.To resolve the error 17199, you need to enter your Outlook 2011 account credentials again and restart the software. Top Ways to Fix Outlook 2011 Error Code 17199 Enter The Username & Password Again In cases, the OLM files are imported into Outlook for Windows without any format change.An unexpected power failure caused Mac Outlook to crash.Improper installation of Microsoft Outlook in your system.Virus, ransomware, and malware attacks on your system. ![]() There are a variety of reasons that can cause the error 17199 to prevail in your system. Reasons for Existence of Error Code 17199 in Mac Outlook But the primary cause is when the OLM files are corrupted due to a malware attack at the OLM file location in Outlook for Mac application and affecting the integrity of data file, & Microsoft Outlook 2011 cannot read them. There may be a variety of reasons for this error. With the occurrence of this error, the user is unable to send emails in Microsoft Outlook 2011. The account that created the message cannot be found. What is Error Code 17199 in Outlook?Īs Outlook 2011 Error 17199 prevails in your system, this error message confirms its existence. To help you fix the error code 17199 in Mac Outlook, we will help you go through the possible causes of occurrence and quick resolving solutions in eliminating this error from your system. With this error code popping up, you are unable to send any message or email in Mac Outlook. Microsoft Outlook 2011 is prone to OLM file corruption issues and one such complex issue that users face is Outlook 2011 Error Code 17199. Therefore, Microsoft Outlook 2011 is now available for Mac users, making business dealings considerably simpler, easier, and quicker. The success of the original Outlook led to the development of other operating systems. It stores all data, such as emails, calendars, contacts, etc. More Informationįor more information about SSL/TLS Renegotiation, please review this TechNet blog post.Microsoft Outlook is one of the most popular email clients, which was originally developed for Windows users to manage their emails smartly. NoteDo not configure the server to use Strict mode, as this prevents the Outlook for Mac client from connecting to the Exchange server. External connections to Exchange Server may be blocked if this server is in Strict mode. If you are using a security product such as Microsoft Forefront Threat Management Gateway (TMG) for managing connections to Exchange Server from outside your company, you will need to configure your TMG server using KB article 980436. This method allows Outlook for Mac to connect to the server even when SSL 2.0 and 3.0 are blocked. This allows the Outlook for Mac client to establish a connection by using the SSL protocol and then renegotiate by using TLS. WorkaroundĬonfigure the Exchange server to support Compatible mode by using the instructions from KB article 980436. When SSL is disabled and secure renegotiation is implemented as defined in RFC 5746, Outlook requires the server to be in Compatible mode so that the session can be renegotiated from SSL to Transport Layer Security (TLS). The connection failure occurs because Outlook for Mac uses SSL to establish communication with an Exchange server. You cannot connect to a server that is running Microsoft Exchange Server from a Microsoft Outlook 2016 for Mac or Outlook for Mac 2011 client after disabling Secure Sockets Layer (SSL) on the server. Outlook 2016 for Mac Outlook for Mac for Office 365 More.
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