MailScanner Not Blocking Attachments

MailScanner Not Blocking Attachments

Post by Jeff Umbac » Wed, 23 Apr 2003 09:23:06



I have been getting emails with attachments that have extensions that should
be denied by MailScanner.  Already one of these has caused a small virus
outbreak due to one clueless user opening it.

I checked the rules file and *.pif and *.bat are expressedly denied, yet
they are getting in.

I'm using MailScanner with sendmail 8.12.8

--
Jeff Umbach

 
 
 

MailScanner Not Blocking Attachments

Post by David Efflan » Wed, 23 Apr 2003 12:36:29



> I have been getting emails with attachments that have extensions that should
> be denied by MailScanner.  Already one of these has caused a small virus
> outbreak due to one clueless user opening it.

> I checked the rules file and *.pif and *.bat are expressedly denied, yet
> they are getting in.

> I'm using MailScanner with sendmail 8.12.8

What about .exe .scr .vbs or where the whole message is base64 encoded
where something else may be hidden?

--
David Efflandt - All spam ignored  http://www.de-srv.com/
http://www.autox.chicago.il.us/  http://www.berniesfloral.net/
http://cgi-help.virtualave.net/  http://hammer.prohosting.com/~cgi-wiz/

 
 
 

1. Blocked ip not blocked - Spew.Spew.Net

    Has anyone else experienced problems with Sendmail 8.9.1 not blocking a
domain named entered in to the access list?
  I have the following line in my access file;

da.uu.net       REJECT  No spam from you.

Yet UU.Net dial-ups pass right pass the reject like it is not there.  Email
addreses do get blocked.  See log below;

Sep 25 14:31:17 user2.dancris.com sendmail[11768]: connect from
1Cust109.tnt1.sylva.nc.da.uu.net
Sep 25 14:31:41 user2.dancris.com sendmail[11800]: OAA11800:


relay=1Cust109.tnt1.sylva.nc.da.uu.net [208.254.171.109]

I did run  makemap on the access file after adding da.uu.net.  I tried both
REJECT and 550.

M. Rawls

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