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Windows 10 Mail Issues

Windows-10Microsoft released Windows 10 free upgrade to Windows 7, 8, and 8.1 users on July 28th, 2015. This new version of Windows currently has numerous known issues with pre-existing email client configurations. Users may experience error messages when attempting to Send or Receive email using their regular email client.

The most common problem is that Windows 10 has disabled the deprecated Secure Sockets Layer (SSL) security on all connections by default, and only allows Transport Layer Security (TLS) connections. If you configured your email accounts in your email client to use SSL these settings would have to be changed as follows:

Incoming Port: for POP3 change from 995 to 110, for IMAP change from 993 to 143
Security Type: change from ‘Use SSL‘ to ‘Use TLS

Outgoing Port: change from 465 to 587
Security Type: change from ‘Use SSL‘ to ‘Use TLS

For those using older versions of Microsoft Outlook, including Outlook 2003, 2007, or 2010, you may experience a “Error 0x800CCC13 ‘Cannot connect to the Network. Verify your network connection or modem.'” message when trying to Send & Receive. To resolve this error use the following instructions:

  1. Use the SEARCH box inside the Windows 10 START MENU. Type cmd there and press CTRL + SHIFT + ENTER to launch the command prompt with elevated privileges. This also works on the START screen.
  2. In your Command Prompt screen type SFC /scannow and press [ENTER] on your keyboard.
  3. When the System File Checker utility is complete, reboot your computer.
  4. Once your computer is rebooted you should be able to open Outlook and check your email without any further issues.

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