Many ISPs require that you be directly connected to their service (not
via another ISP, corporate LAN, etc.) in order to send via their SMTP
mail server. (They match your IP address against those owned by the
service.) An exception is made for messages being sent to recipients of
their service. The typical error message will be "Cannot Relay" or "Not
Local" or "Not Gateway", "Not Allowed Rcpthost" or something similar. A
workaround for this is to use the SMTP mail server of the service that
you connect via, but leave your other settings the same. And for some
mail services, the SMTP Authentication may be needed. In OE this is
specified in Tools, Accounts, Mail, Properties, Servers, Outgoing Mail
Server, My Server Requires Authentication.


--

Mike - http://pages.prodigy.net/michael_santovec/techhelp.htm


"BERNARD" wrote in message
...
I can receive emails, I cannot send.
Error message is: 550 5.7.1 ... ... Relaying denied. Proper
authentication required.
Same occurs with OE6 and Outlook 2003.
Can anyone help me?
Thank you so much