	    my $amavis_url = &amavisCredits();
	    $SENDER = "(empty address)" if ($SENDER eq "<>");
	    printf MAIL (<<"EOF",
From: $mailfrom
To: $rcpt
Subject: VIRUS IN MAIL FOR YOU (from %s)

                           V I R U S  A L E R T

Our viruschecker found the

\t%s

virus%s in an email to you from:

\t%s

Delivery of the email was stopped!
Please contact your system administrator for details.

EOF
		# [still within printf syntax!]:
		sanitize_str($SENDER),
		join("\n\t", map(sanitize_str($_),@virusname)),
		(@virusname==1?"":"es"),
		sanitize_str($SENDER) )
		    or die "warn_recip: printf failed: $!";

	    if ($QUARANTINEDIR) {
		print MAIL <<"EOF" or die "warn_recip: print failed: $!";
The ID of your quarantined message is: $VIRUSFILE
EOF
	    }
	    if ($amavis_url ne "") {
		print MAIL $amavis_url,"\n" or die "warn_recip: print failed: $!";
	    }
