sending a virus from mailscanner's domain is undetected but incoming mail from either our domain or others is detected

Julian Field mailscanner at
Fri Jun 21 18:37:06 IST 2002

At 17:36 21/06/2002, you wrote:
>Sending a virus from mailscanner's domain to another is undetected,  but
>incoming mail from either our domain or others,  is detected.
>Is this normal?

Did you run the email client program on the machine that is running
MailScanner, by any chance? If so, did you make the email program talk SMTP
to localhost:25 or did it invoke sendmail directly?

MailScanner (when running with sendmail) can only scan mail coming in the
SMTP port. There is no way (with sendmail) of scanning mail poked directly
at the sendmail binary.
Julian Field                Teaching Systems Manager
jkf at         Dept. of Electronics & Computer Science
Tel. 023 8059 2817          University of Southampton
                             Southampton SO17 1BJ

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