It’s not caused by a problem on your computer, or our servers. Outlook for Mac has a bug that can cause duplicated images, unfortunately. If this happens to you, Microsoft suggests deleting all messages in the Outbox to solve it.ĭo some people see duplicate images in messages you send? We occasionally hear reports of an Outlook bug that makes it impossible to send mail (even though you can receive mail), with Outlook showing with an “unknown error code 17199”. You should update to the current version of Outlook if you’re concerned about security.

In practice, SSLv2 has not been secure for many years, and offers little protection against attackers anyway. In theory, turning off SSL encryption in the Outlook settings weakens security, making it possible for attackers who have access to your network to intercept your password. If you can’t do that, turning off SSL in Outlook 2011 (as described above) will allow it to continue to work. The best solution to this is to upgrade to a modern version of Outlook. If your network also uses a very common kind of firewall that prevents “client-initiated session renegotiation”, SSL connections will simply fail.

Outlook 2011 has a bug handling SSL connections: It tries to use the long-obsolete “SSLv2” protocol that is no longer supported on modern mail servers, including ours. You're finished! Try sending yourself a test email message to make sure it works.

Mac office 2011 support