Outlook Error 8004010F

Sending/Receiving reported error: “Outlook data file cannot be accessed (error 8004010F)” ...

Outlook Error 0x80040119

Error 0x80040119 when sending email ...

Outlook Error 0x80042108

Error 0x80042108 when receiving email ...

Outlook Error 0x80042109

Sending reported error (0x80042109): Outlook cannot connect to your outgoing (SMTP) e‐mail server ...

Outlook Error 0x8004210A

Task reported error 0x8004210A – “the operation timed out while waiting for a response from the receiving server” ...

Outlook Error 0x800CCC0B

We suggest user to check email account profile of Microsoft Outlook ...

Outlook Error 0x800CCC0F

The connection to the server was interrupted ...

Outlook Error 0x800CCC78

Error 0x800CCC78 when sending email ...

Outlook Error 0x800CCC7D

Error 0x800CCC7D when sending email ...

Outlook Error 0x800CCC80

Sending reported error (0x800CCC80): “None of the authentication methods supported by this client are supported by your server” ...

421 Email Error

A 421 email error is typically a temporary routing issue on the receiving mail server's end. These should usually be resolved automatically, and you should receive a final bounce‐back message if the message completely fails ...

450 Email Error

A 450 email error is typically a temporary routing issue on the receiving mail server's end. Sometimes these are also Grey‐listing responses from the receiving mail server used to filter incoming mail ...

550 Email Error

A 550 email error is generally encountered when the recipient's mailbox is unavailable due to being incorrectly typed or not found ...

"550 Invalid address" email error

What is the "550 invalid address" error? ...

551 Email Error

A 551 email error is normally encountered when there is an attempted delivery to a mail server that doesn't handle mail for the specified recipient ...

552 Email Error

A 552 email error is typically encountered when there is a problem related to an attachment in your email. Either it has exceeded the size limits of the remote server or ...

553 Email Error

A 553 email error is normally related to SMTP authentication not being used. Most mail servers require that you authenticate with a valid user on that system ...

554 Email Error

A 554 email error is sometimes thought of as a catch‐all of email errors. It is generally used when there is a generic delivery failure that another email error code doesn't directly define a problem for ...

Domain Error Messages

Most of the time, when a domain has an email problem, they learn about it very quickly from their users, and in addition ...

Email Bounce‐ Retry timeout exceeded

Occasionally, you may send an email message that returns a bounce‐back message with an error such as the following ...

Email Error‐ Mailbox Quota Exceeded

If you get a warning email message about your mailbox quota reaching the limit, over quota or get and undelivered mail returned about ...

Improper forwarding causing mail loop

In general, a "too many hops" error indicates a mail loop ...

Invalid HELO name (Email Authentication)

If you are receiving "550 Access denied ‐ Invalid HELO name" (or a similar error message) in your email client ...

Message exceeds size limit

These errors mean that the size of the message, including all headers ...

SMTP and ESMTP error code list

It is important to figure out why your email bounces ...

No connection could be made because The target machine actively refused it

This message varies depending on the version of Outlook you're using. You may also see “The server could not be found or Error 0x800CCC0F” ...

Typical Email Error Messages

Included with your account, you have the ability to set up and manage multiple email accounts ...

What to do if an email is returned?

Your email account will return an email if there is an issue ...