You need to talk to the mail administrators at hcm.fpt.vn. The error
message says that you are not authorized to use their mail server for
sending via your current Internet connection. It's a spam control
measure. They can tell you what workaround, if any is possible.

--

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


"demarco" wrote in message
...
I can only receive email cannot send new mail with outlook express 6.0
installed in my laptop connecting to a ADSL connection. The following
error
message appears after my sending :

The message could not be sent because the server rejected the sender's
e-mail address. The sender's e-mail address was
'.
Subject 'test', Account: 'imail.hcm.fpt.vn', Server:
'omail.hcm.fpt.vn',
Protocol: SMTP, Server Response: '550 you cannot access
from current location', Port: 25,
Secure(SSL): No,
Server Error: 550, Error Number: 0x800CCC78

I creat the same account and be able to send/receive with OE 6.0 in
another
home PC connecting to another ADSL service.

When I telnet omail.hcm.fpt.vn 25 the result in my laptop is:
220 hcm.fpt.vn Power Mail version 2.13 [50]

I creat the same account in Microsoft Outlook installed in laptop but
can
not send also (receiving is Ok).

I can send and receive with different email account (different
outgoing and
incoming server) by OE or MO.

Please give me an instruction how to solve. I need to use OE for
send/receive email by the above email account. Thank you very much for
your
help!!!