outlook express, some of my mails don't send

[alan42]

An unknown error has occurred. Subject 'silver wedding', Account:
'POP3.ntlworld.com', Server: 'smtp.ntlworld.com', Protocol: SMTP, Server
Response: '550 you are not allowed to send mail to <[email protected]>', Port:
25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC69

 

[DL]

Vista doesnt have, or support Outlook Express

 

[Gerardo]

I have the same problem in Windows mail.
No problem when I use Microsoft Outlook
and you know what, sometimes I can sent but mostly not.
Someone a solution?

Gerardus Dirks

 

[Bruce Hagen]

You have the exact same problem and the exact same error message? Not very
likely. Please start your own new thread and include the error message
verbatim and the symptoms you are incurring.

 

[Gary VanderMolen [MVP]]

Make sure you have send authentication enabled.
Go to Tools, Accounts, select that account, Properties, Servers.
Enable the "My server requires authentication" option.

If the problem continues, are you sending from home, or from a
laptop away from home?