how to enable tls in outlook 2011 for mac

Enable Tls In Outlook 2011 How To Work Around

I have disabled these but now I cannot get email traffic in or out of Spiceworks and I have several Mac users using Outlook 2011 that cannot connect.

It really depends on the server OS as to whether or not TLS 1.1 is supported.

Windows users with Outlook 2010 had no problems.

Browser-based Outlook Web Access users had no problems.

Affected users who can no longer use Outlook 2011 for Mac, CAN use browser-based Outlook Web Access, but this isnt a complete workaround.

Because problem appeared simultaneously on multiple office MacBook Pros (which for 18 months had been happily using Outlook 2011 with Comcast Hosted Exchange), I suspect a new configuration at the Comcast Hosted Exchange Server caused the issue.

While researching, I came across this Microsoft Knowledgebase article from last fall..which states: 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.

The connection failure occurs because Outlook for Mac uses SSL to establish communication with an Exchange server.

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).

This affects ALL version of Outlook for Mac (2011, 365, and 2016) if the Exchange Server is configured for STRICT mode.

Instead, the Exchange Server must be configured for COMPATIBLE mode for Outlook for Mac users to keep on working.

Our assigned Comcast Hosted Exchange server (Exchange 2010) is part of server cluser w14d.

This has been reported to and is in the queue for Comcast Tier 2 support as incident CR553332118, but as of this time I dont know if anyone has yet looked at it.

To complicate things, I understand Comcast Tier 2 will have to go to MICROSOFT, who is actually running the servers for Comcast.

Its possible there is another cause; if the servers security certificate has been replaced so that SSL v2 and SSL v3 are no longer supported.

My heart is Bleeding over this POODLE of issues, and my Mac users are getting upset.

Enable Tls In Outlook 2011 How To Work Around

Anyone else have some insight on this issue, or how to work around it.

How To Enable Tls In Outlook 2011 For Mac