Issue Error Messages:
Task ‘Mailer – Sending’ reported error (0x800CCC0F) : ‘The connection to the server was interrupted. If this problem continues, contact your server administrator or ISP. The server responded: 501 Too many syntax or protocol errors’
Common Causes for the error include:
- A misspelled email address in the To: field (most common)
- Improper Characters in the To: field Eg: < > [ ] etc.
- Leaving a space before or after the email address
- Manually typing the wrong SMTP commands into a terminal window
- A mail filtering or mail scanning plugin which is integrated into your mail client Eg: An Anti-Virus or Firewall
- An old / incorrect message lying in your Outlook Outbox folder.
Solution:
When sending emails using outlook you might receive the error above. It seems that when you copy & paste the email addresses into the To field, they include quotations around them that the server did not know how to handle (i.e. ‘name@website.com’ instead of just name@website.com).
Remove the quotations & then try sending emails.
