When you try to send emails, the following message will be returned to you:

Sending' reported error (0x800CCC78) : 'Cannot send the message. Verify the e-mail address in your account properties.  The server responded: 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)'

Solution:

Check in Outlook the email account settings: username (full email address), password, email server (mail.yourdomain.ro), SMTP port (25 or 26); make sure "SMTP authentication" is checked (in Outlook "My server requires authentication")

Was this answer helpful? 0 Users Found This Useful (0 Votes)

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 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...
503 valid RCPT command must precede DATA

If, when sending an email, the server returns the error message "503 valid RCPT command must...