Oct 16, 2017  It used to be a thing in Outlook 2011 for Mac that if the mailbox was too big, or if there were too many folders it would just freak out. (and always really random when it freaked out!) Repairing the database usually works.

• Microsoft Outlook For Mac Free
• Microsoft Outlook For Mac Versions

1. Errors when sending emails from security groups, distribution lists, or mail-enabled Public Folders in Outlook for Mac Content provided by Microsoft Applies to: Outlook for Mac for Office 365 Outlook 2019 for Mac Outlook 2016 for Mac.
2. May 04, 2017  I just want to start out with I use to have nothing but issues with Office for Mac 2011. I would definitely upgrade to 2016. To address the actual issue, I found that if there are folders that have more than 5000 items, then you will get sync issues in 2011.

This section is intended for developers who are debugging system errors. If you reached this page while searching for other errors, here are some links that might help:

• Windows Update errors - For help resolving issues with Windows Update.
• Windows activation errors - For help verifying your copy of Windows.
• Troubleshooting blue screen errors - For help discovering what caused a stop error.
• Microsoft Support - For support with a Microsoft product.

More ways to find an error code

We've listed the system error codes in this section, organized by number. If you need more help tracking down a specific error, here are some more recommendations:

• Use the Microsoft Error Lookup Tool.
• Install the Debugging Tools for Windows, load a memory dump file, and then run the !err <code> command.
• Search the Microsoft Protocols site for the raw text or error code. For more information, see [MS-ERREF]: Windows Error Codes.

Third party error codes

Other error codes may be generated by third party services or apps (for example, Error Code: -118 may be displayed by the Steam game service) and in those situations you would contact the third party's support line.

System Error Codes

System Error Codes are very broad: each one can occur in one of many hundreds of locations in the system. Consequently, the descriptions of these codes cannot be very specific. Use of these codes requires some amount of investigation and analysis. You need to note both the programmatic and the runtime context in which these errors occur.

Because these codes are defined in WinError.h for anyone to use, sometimes the codes are returned by non-system software. And sometimes the code is returned by a function deep in the stack and far removed from code that is handling the error.

The following topics provide lists of system error codes. These values are defined in the WinError.h header file.

If your Mac is connected to the Internet but suddenly stops sending email, you should generally try again later, and if necessary work with your email provider to resolve. If you're using Apple's iCloud Mail, learn how to resolve issues with iCloud Mail.

Check for status messages

You might see a status icon such as a lightning bolt or warning symbol next to your account's inbox in the Mail sidebar, or in the upper-right corner of the Mail window. Click it to learn more.

• If the status is Network Offline, make sure that your Mac is connected to the Internet, then try again.
• If the status is Login Failed, check with your email provider to be sure that your account is set up correctly on your Mac.
• If Mail asks for your password, but entering the password doesn't help, find out why your email provider is rejecting your password.
• If your email service is temporarily unavailable, your email provider might have a status message on their website. For example, Apple's system status page shows the status of iCloud Mail. Status pages are also available for other email services, such as Gmail and Outlook. Some brief service outages might not appear on a system status page, so you might want to wait a few hours and try again.

Test using webmail

Microsoft Outlook For Mac Free

Many email providers offer webmail, which is a way to use email with a web browser such as Safari, instead of with an email app such as Mail. For example, if you're using an iCloud Mail account, you can use iCloud.com to send and receive email.

Microsoft Outlook For Mac Versions

Webmail is a good way to verify that your account is valid and you can sign in to it from the web, but it doesn't mean that your account is set up correctly in Mail. Your email provider can help you verify your email settings and check for other issues that affect sending or receiving email.