Outlook error 0x800408FC occurs when the mail server that you are trying to connect to cannot be found on the network. The “0x800408FC” error in an Outlook send/receive error can occur in any version of Outlook (2003, 2007, 2010, or 2013) and usually occurs abruptly without changing any settings in Outlook or on the network.

Outlook Error 0x800408FC

Outlook Error 0x800408FC usually occurs when you specify the wrong e-mail servers (incoming or outgoing) in your Outlook e-mail settings. In this case, you will be notified by Outlook that “The server name you entered cannot be found on the network (it may be temporarily disabled). Make sure you are online and that the server name is correct.

Also Read: How to fix Outlook error 0x80042108 in Windows 10

This tutorial provides step-by-step instructions for fixing the Outlook error 0x800408FC while sending / receiving Outlook. (Outlook 2016, 2010, 2007, and 2003)

How to Fix Outlook Send/Receive Error 0x800408FC.

Important: Before proceeding with the methods below, first make sure that you have configured the correct e-mail server settings (Incoming and Outgoing) in your e-mail account.

Method 1. Disable the TCP / IPv6 protocol.

The first and best way to fix Outlook 0x800408FC error is to disable Internet Protocol Version 6 (TCPIP / IPv6) on the active network adapter.

  1. Press the Windows image_thumb8 + R keys to open the Run command box.
  2. Type ncpa.cpl and press Enter.
Outlook Error 0x800408FC
Click Properties.
  1. Double-click the active network adapter.
  2. Click Properties.
Outlook Send/Receive Error 0x800408FC.

5. Clear the Internet Protocol Version 6 (TCP / IPv6) check box, and then click OK.

Outlook Error

6. Start Outlook to determine whether the Outlook 0x800408FC error was resolved during the Send/Receive operation.

Method 2. Change the ports on the mail server to fix Outlook Error 0X800408FC.

Another way to fix the Outlook Error 0x800408FC during Outlook Send/Receive Error is to change the server ports for incoming and outgoing mail in Outlook E-mail. To do it:

  1. Open Outlook.
  2. Click File -> Account Settings.
Outlook Send/Receive Error
Images Source-RepairWin.com
  1. Double-click the email address on the Email tab to change its settings.
  2. Press the More Settings button.
Images Source-RepairWin.com

5. At Outgoing Server tab, check the My outgoing server (SMTP) requires authentication checkbox.

outlook outgoing server settings

6. Then select the Advanced tab and apply the following settings:

1. Check the This Server requires an encrypted connection SSL checkbox
2. Set the Incoming server (POP3) Port to 995 or to 993 if you’re using an IMAP account.
3. Change the Use the following type of encrypted connection to SSL
4. Set the Outgoing server (SMTP) Port to 4655. Click OK to apply changes.

outlook Advanced settings

7. Restart Outlook.

Method 3. Verify that the Mail Server is up and running.

The final method to resolve the 0x800408FC error in Outlook, is to use the old-fashioned ‘ping’ command and check if your mail server(s), is reachable from your network. *

* For example: If your e-mail server’s name is “mail.example.com” then in command prompt give the following command and press Enter:

  • ping mail.example.com

– If you don’t receive a  response (reply) from the mail server (request time out), or if you receive that the “Ping request could find host” error, but you can access other Internet sites by using your Web browser, then check your firewall settings or speak with your e-mail service provider, to verify that the mail server name(s) is correct and the server is up and running.

ping command

Additional help for Google based e-mail accounts.
– If you ‘re using a GMAIL account in Outlook and you receive the Outlook Error 0x800408FC during “Send/Receive” progress (in GMAIL account), then Sign-In to your GMAIL account, by using your Web browser and:

a. Allow Less Secure Applications & Apps to Access GMAIL.
b. Disable the 2-Step verification in GMAIL
c. Unlock the Captcha function

That’s all folks! Did it work for you?

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