Thanks for your kind answer.
I have additional question.
b) once domains are identified correctly, you might replace the
/usr/sbin/sendmail by a wrapper
this is a good idea..
Do you have any recommendable wrapper program about sendmail?
Thanks again for your time..
From: [EMAIL PROTECTED]
To: users@spamassassin.apache.org
Subject: Re: Any anti-spam solution against outgoing mail?
Date: 28 Dec 2006 21:57:37 -0000
>> Hello, list.
>>
>> I have used well SA with procmail well against incoming mail.
>> But there are lots of outgoing spam-mails using web programs or using
>> sendmail at my server.
>> (There are several domains are hosted at the server.)
>>
>> So is there any program like spamassassin which can filter against
outgoing
>> spam mail?
>> or any program which can limit sending spam-mail?
>>
>> Please recommend any for me..
>>
>> my system is linux and sendmail.
>>
>>
>>
Hi,
a) it might be possible to enforce valid sender through webserver config
.... so it does not say
[EMAIL PROTECTED] but rather shows the actual domain
b) once domains are identified correctly, you might replace the
/usr/sbin/sendmail by a wrapper
that performs rate limiting and/or alerting
c) both you andyour client domains should receive bounces
d) you should educate your clients about email form best practices
Wolfgang Hamann
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