The SMTP Security Server is used to prevent certain types of mail from passing your gateway. The SMTP Security Server is enabled when the following situations are true.
There is a line that permits in.asmtpd to start up in $FWDIR/conf/fwauthd.conf. This line is present by default.
A valid resource is defined and used in your security policy.
The proper line for the SMTP Security Server in $FWDIR/conf/fwauthd.conf looks like this (with no comment character, #, at the beginning of the line):
25 fwssd in.asmtpd wait 0
If this line is not present or is commented out, the SMTP Security Server will not run, and any process that relies on it will fail.
The SMTP Security Server acts a bit differently than the other Security ...