Re: SMTP Relay Problem

i recommend turning off authentication and then setting the relay settings
to 'only the list below', and then adding your lan ip address range to it,
like 192.168.0.1(255.255.255.0). this will stop any relaying through you
from outside while allowing anyone on the lan to send mail out.

"Help Needed" <HelpNeeded@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:DA744BDD-7EBF-4A04-B000-73C2144BD072@xxxxxxxxxxxxxxxx
Hi,

I am getting error while using SMTP Relay, the error is

550 5.7.1 Unable to relay for prasadagv@xxxxxxxxxx

We have Windows 2003 OS used to host our web site (a small business site
developed in asp.net). We are using 'SMTP Virtual Server' and 'POP3
Service'
components of Windows 2003 OS for our mails (mail accounts like
'abc@xxxxxxxxxxxxx')

When we configured 'SMTP Virtual Server' Relay as 'All except the list
below' (there are no IPs in list) in Relay Restrictions (SMTP
Properties/Access/Relay); we could able to send and receive mails from our
Outlook client to gmail/yahoo..... (from 'abc@xxxxxxxxxxxxx' mail id). But
there are thousands of spam mails filled in queue folder.

But when we select 'Only the list below' and 'Allow all computers
successfully authenticate...' options in 'Relay Restrictions' (SMTP
Properties/Access/Relay); We are able receive mails from gmail/yahoo to
our
Outlook client but we couldn't able to send mails thru Outlook to
gmail/yahoo..... Mail will bounce back with Message '50 5.7.1 Unable to
relay for prasadagv@xxxxxxxxx'. When perform 'Test Account settings' in
outlook it is successfull.

I want to stop spam mails in our queue folder and want to use outlook as
client to send/receive mails from anywhere (ofcourse after authentication
only) which option I need to select. Please help me in this regard.
Please
help.


.

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