Cannot send e-mail from Outlook Express 6 - get error 'Server Error: 250, Error Number: 0x800CCC7D'

I can receive e-mail in Outlook Express 6 ok, but when I try to send e-mail I get the following error message - 'The server does not support a SSL connection. Account: '', Server: '', Protocol: SMTP, Server Response: '250 OK', Port: 25, Secure(SSL): Yes, Server Error: 250, Error Number: 0x800CCC7D'.

If I go into Accounts/Properties/Advanced and uncheck the 'This server requires a secure connection (SSL)' box for 'Outgoing mail (SMTP)', I get the error message - 'The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was '*** Email address is removed for privacy ***'. Subject 'Test message', Account: '', Server: '', Protocol: SMTP, Server Response: '530 5.7.0 Must issue a STARTTLS command first', Port: 25, Secure(SSL): No, Server Error: 530, Error Number: 0x800CCC78'.

The only thing I have changed on my PC recently is IE - upgraded to IE8.
I don't know if that is related to this problem. I only use Outlook Express 6 occasionally for sending e-mail, so I don't know if this problem started when I upgraded to IE8 or not. My ISP is MSN.

Try using port 587 for the outgoing server, making sure "This server requires a secure connection" is checked.

Brian Tillman [MVP-Outlook]

5 people were helped by this reply


Did this solve your problem?

Sorry this didn't help.

Great! Thanks for marking this as the answer.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this response?

Thanks for your feedback.


Question Info

Last updated April 16, 2020 Views 13,197 Applies to: