What does error 0x800CCC0B mean?
Server or mail drop is busy
Error code 0x800CCC0B means “Server or mail drop is busy”.
How do I fix error 0x8004210b?
How to Fix the Reported Error 0x8004210b in Microsoft Outlook?
- 1 Make sure that you are connected to the internet and able to telnet SMTP port number.
- 2 Check the Outlook email account settings.
- 3 Disable or uninstall anti-virus.
- 4 Install available Windows update.
- 5 Try Outlook repair tool.
What is error 0x800ccc0d in Outlook Express?
Outlook Error 0x800ccc0d is simply a failure to connect – that’s in the error message. Outlook and Outlook Express both report that error number when they can’t find or connect to your mail server. Understanding what’s happening is fairly easy.
What is Outlook error code?
SMTP Errors
| Error Code | Description |
|---|---|
| 0x800CCC6E | Invalid mailbox name syntax. |
| 0x800CCC6F | Transaction failed. |
| 0x800CCC78 | Unknown sender. This is caused by having the incorrect e-mail address in the Reply-To field. |
| 0x800CCC79 | Server rejected recipients. |
What is 0x8004210B?
On newer Outlook versions, the most common cause that will trigger the “(0x8004210B) The operation timed out waiting for a response from the sending (SMTP/POP3) server” error is a situation where the email contains an attachment that contains unsupported files or it’s simply too large in size.
What is error 0x80040900?
Outlook “0x80040900” error commonly occurs when you have specified incorrect the mail server name (or ports) at Outlook Account settings, or, if you cannot reach the mail server due to Internet connections problems.
What is error 0x8004210a?
Outlook error 0x8004210a is the same for Outlook 2016, 2013, 2010 and 2007. This error occurs when Microsoft Outlook fails to establish a connection with your email server. Your email server is unavailable temporarily or your internet is not connected. Email account settings are not correct.