Most often, this message is caused by the corruption of the password file in your account. To fix the problem try:
1. reset the password of the email account in CPanel
2. delete/re-create the email account from Cpanel
Most Popular Articles
"451 Please try again later" when sending emails from Outlook
When you try to send emails from Outlook, you receive the following message: An unknown error...
"Error 0x800CCC78" when sending emails
When you try to send emails, the following message will be returned to you: Sending' reported...
"Error 0x800ccc0d or 0x800ccc0f" when sending or receiving emails
When trying to send/receive emails you receive one of the following messages: The server could...
"Message Could Not Be Retrieved" or "Server Error: 0x800CCC90, Error Number: 0x800420CD"
This problem originates from the inability of Outlook to download a particular email from the...
"too many attachments" when sending an email
In the shared hosting environment, the maximum number of attachments that can be sent in an email...
