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SpamFilter by default only allows emails to be sent to your
"Local Domains", which are the domains you own. This is to prevent spammers from
using your server as an open relay, which would allow them to "bounce" email
from your server.
This is why your customer is not able to send emails if she
has your SpamFilter's name/IP in her client's "Outgoing SMTP Server"
configuration.
The simplest solution in your case, if you have a small
number of users with this issue, is to add the IP ranges of those users in a
whitelist.
This can be done from SpamFilter's "Settings - Black/White
Lists" tab, under the "Excluded Domains / IPs" setting. Simple add either her IP
address (ex. 192.168.23.90), or her whole class C of addresses
(ex. 192.168.23.*) in that list.
The new version of SpamFilter v3.1 that was released last
month also supports authentication of users via Active Directory or LDAP. This
allows SpamFilter to allow all users who successfully authenticate to be able to
send emails thru it.
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Roberto Franceschetti
http://www.logsat.com" rel="nofollow - LogSat Software
http://www.logsat.com/sfi-spam-filter.asp" rel="nofollow - Spam Filter ISP
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