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2. Find Autodiscover Endpoints By Using SCP Lookup In Exchange
3. See Full List On Docs.microsoft.com
4. Office Bug Patch Highlights For May 2016 - Office Watch

Consider the URL that returns any other non-200 status code to be invalid, and continue trying the next URL in your list. Autodiscover errors Even if you get a 200 (OK) status code after sending an Autodiscover request, that doesn't mean that the server sent the information you need. Im running 2016 on probably 25 Mac's and haven't seen this issue yet, but I have had weird issues with Outlook in general that aren't worth the time messing with and just adding the account back again will fix saving all of our times. Both of the mentioned errors are caused by the invalid MIME content of the message - this basically means that items are corrupted. Such items may be fully accessible in Outlook or OWA but are considered impossible to be migrated as some of their properties invisible to the end-user, but required for migration, are missing or broken. Movavi Video Editor For Mac. Movavi is a video editor application for the Mac that has a free version as well as a more full-featured Pro alternative. It runs on the Mac OS X 10.7 or later and is an easy to learn editing tool that can be mastered in well under an hour. Wifi strength app for mac. Let’s take a look at the features included in. Welcome to the Mimecast Community. Find answers, ask questions, share ideas, and connect with a global community of Mimecasters.

MIME types describe the media type of content, either in email, or served by web servers or web applications. They are intended to help provide a hint as to how the content should be processed and displayed.

Examples of MIME types:

• text/html for HTML documents.
• text/plain for plain text.
• text/css for Cascading Style Sheets.
• text/javascript for JavaScript files.
• text/markdown for Markdown files.
• application/octet-stream for binary files where user action is expected.

Server default configurations vary wildly and set different default MIME-type values for files with no defined content type.

Versions of the Apache Web Server before before 2.2.7 were configured to report a MIME type of text/plain or application/octet-stream for unknown content types. Modern versions of Apache report none for files with unknown content types.

Nginx will report text/plain if you don't define a default content type.

As new content types are invented or added to web servers, web administrators may fail to add the new MIME types to their web server's configuration. This is a major source of problems for users of browsers that respect the MIME types reported by web servers and applications.

Why are correct MIME types important?

If a web server or application reports an incorrect MIME type for content (including a 'default type' for unknown content), a web browser has no way of knowing the author's intentions. This may cause unexpected behavior.

Some web browsers, such as Internet Explorer, try to guess the correct MIME type. This allows misconfigured web servers and applications to continue working for those browsers (but not other browsers that correctly implement the standard). Apart from violating the HTTP spec, this is a bad idea for a couple of other significant reasons:

Loss of control

If the browser ignores the reported MIME type, web administrators and authors no longer have control over how their content is to be processed.

For example, a web site oriented for web developers might wish to send certain example HTML documents as either text/html or text/plain in order to have the documents either processed and displayed as HTML or as source code. If the browser guesses the MIME type, this option is no longer available to the author.

Security

Some content types, such as executable programs, are inherently unsafe. For this reason, these MIME types are usually restricted in terms of what actions a web browser will take when given that type of content. An executable program should not be executed on the user's computer and should at least cause a dialog to appear asking the user if they wish to download the file.

MIME type guessing has led to security exploits in Internet Explorer that were based upon a malicious author incorrectly reporting a MIME type of a dangerous file as a safe type. This bypassed the normal download dialog, resulting in Internet Explorer guessing that the content was an executable program and then running it on the user's computer.

JavaScript legacy MIME types

When looking for information about JavaScript MIME types, you may see several MIME types that reference JavaScript. Some of these MIME types include:

• application/javascript
• application/ecmascript
• application/x-ecmascript
• application/x-javascript
• text/ecmascript
• text/javascript1.0
• text/javascript1.1
• text/javascript1.2
• text/javascript1.3
• text/javascript1.4
• text/javascript1.5
• text/x-ecmascript
• text/x-javascript

While browsers may support any, some, or all of these alternative MIME types, you should only use text/javascript to indicate the MIME type of JavaScript files.

Note: See MIME types (IANA media types) for more information.

How to determine the MIME type to set

There are several ways to determine the correct MIME type value to be used to serve your content.

• If your content was created using commerical software, read the vendor's documentation to see what MIME types should be reported for the application.
• Look in IANA's MIME Media Types registry, which contains information on all registered MIME types.
• Search for the file extension in FILExt or the File extensions reference to see what MIME types are associated with that extension. Pay close attention as the application may have multiple MIME types that differ by only one letter.

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How to check the MIME type of received content

• In Firefox
  • Load the file and go to Tools > Page Info to get the content type for the page you accessed.
  • You can also go to Tools > Web Developer > Network and reload the page. The request tab gives you a list of all the resources the page loaded. Clicking on any resource will list all the information available, including the page's Content-Typeheader.
• In Chrome
  • Load the file and go to View > Developer > Developer Tools and choose the Network tab. Reload the page and select the resource you want to inspect. Under headers look for Content-Type and it will report the content type of the resource.
• Look for a <meta> element in the page source that gives the MIME type, for example <meta http-equiv='Content-Type'>.
  • According to the standards, the <meta> element that specifies the MIME type should be ignored if there's a Content-Type header available.

IANA keeps a list of registered MIME Media Types. The HTTP specification defines a superset of MIME types, which is used to describe the media types used on the web.

How to set up your server to send the correct MIME types

The goal is to configure your server to send the correct Content-Type header for each document.

• If you're using the Apache web server, check the Media Types and Character Encodings section of Apache Configuration: .htaccess for examples of different document types and their corresponding MIME types.
• If you're using NGINX, look at the NGINX configuration snippets. NGINX does not have a .htaccess equivalent tool, so all changes will go into the main configuration file.
• If you're using a server-side script or framework to generate content, the way to indicate the content type will depend on the tool you're using. Check the framework or library's documentation.

Related Links

Problem:

During the migration with CodeTwo Exchange Migration or CodeTwo Office 365 Migration some items are not migrated and one of the following errors is recorded for them in the log files:

Solution:

Both of the mentioned errors are caused by the invalid MIME content of the message - this basically means that items are corrupted. Such items may be fully accessible in Outlook or OWA but are considered impossible to be migrated as some of their properties invisible to the end-user, but required for migration, are missing or broken. For your information, it is the requirement of the target EWS service of MS Exchange Server (either On-premises or Online) that migrated items are in good health. CodeTwo Migration software attempts to repair corrupted items, although these attempts are not always successful and then, target server's EWS rejects such corrupted items.

From our experience, MS Outlook has the ability to repair corrupted items. You might want to try using MS Outlook to fix such items if the problem is limited to just a few of them, again in just a few mailbox. To do so, please follow the steps below:

Find Autodiscover Endpoints By Using SCP Lookup In Exchange

1. Create a folder on your computer (e.g. on a desktop) in which you will temporary store items with the corrupted MIME content.
2. Open MS Outlook.
3. Find the corrupted messages in your mailbox. They will most likely work like a charm in MS Outlook and do not really show any signs of corruption. Review the CodeTwo Migration software 'mailbox' log files to pinpoint the corrupted items first.
4. Drag and drop corrupted items to the temporary folder (see point 1) from the MS Outlook.
5. Permanently delete the corrupted items from MS Outlook. Make sure you do not move those items to the Trash/Bin by simply hitting Delete button, use Shift+Delete upon selecting them to remove them from the mailbox completely.
6. Now, drag and drop exported items back to the MS Outlook, from the temporary folder (see point 4). Pay attention when doing so, to copy items into the same folder of your mailbox that the original items were taken from.
7. Give it a minute or so, to synchronize Outlook with the Exchange Server.
8. Close MS Outlook and use the Rescan button in CodeTwo Migration software to restart the migration.

If the above steps do not help or there are too many corrupted items for this workaround, it might be necessary to exclude those items from the migration.

See Full List On Docs.microsoft.com

CodeTwo will appreciate if you provide examples of such corrupted items in a PST archive for analysis by our developers. We would like the software to be able to auto repair such items but it is not possible to cover all possible corruption scenarios without appropriate examples. Use our file upload form to provide zipped PST file with examples along with the software diagnostic details. Hopefully, we will be able to implement a software-side fix for your corrupted items in the next release of the software.

Office Bug Patch Highlights For May 2016 - Office Watch

See also: