[techtalk] re: Send Mail or just Mail in General

[Stephanie Alarcon]

I have some notes on how to do this with sendmail although the last time i
actually added something on was a little while ago...

in your sendmail dir (/etc/mail on my system) edit either the "deny" or
"access" files.  the access file we have here has entries, for users and
domains, that go like

user at blah.com	<tab>	REJECT
@domain.com	<tab>	REJECT

after you edit the file, you do 

makemap hash access < access

and bam. you can do the same with the deny file.

On Thu, 11 May 2000, Telsa Gwynne wrote:

> On Thu, May 11, 2000 at 07:45:50AM -0700 or thereabouts, Allen Heinecke wrote:
> > I have question on mail. 
> > 
> > How do I block or autodelete all mail from a specific domain or email
> > address?
> > 
> > Any help would be greatly appreciated.
> > 
> > Thank you in advance :)
> > 
> > -Lone
> 
> For MTAs:
> 
> If you are using exim, it's dead easy (which was wonderful when I
> suddenly had to learn this immediately to stop a barrage of 
> unwanted email shooting down my modem..):
> 
> sender_net_reject_recipients = IP address or range.
> sender_host_reject_recipients = FQDN.
> 
> You can glob the latter: I have *.somesiteIhate.com in mine :)
> Once you've changed that in /etc/exim/configure or whereever,
> restart exim. Those will stop the machine even accepting email 
> from that site.
> 
> If you are using sendmail, postfix or something, I have no idea but 
> I expect there's a way.
> 
> Or you can use procmail, I expect: a friend uses a .procmailrc for
> his personal email that drops anything from a range of addresses,
> anything containing a Word file, anything from a list of known spam
> relays... I only know how to use procmail for individual user accounts,
> though. I don't know how you make it run for all mail arriving for
> any user.
> 
> The rules would be something like (from said friend's _copious_
> examples): 
> 
> :0:
> * ^From: .*@aol\.com
> /dev/null
> 
> :0 B:
> * ^Content-Type: text/x-vcard
> /dev/null
> 
> :0 B:
> * [Ww][Ii][Nn][Mm][Aa][Ii][Ll]\.[Dd][Aa][Tt]
> /dev/null
> 
> The disadvantage with this one is that you still accept the email,
> and if the problem is massive amounts of unwanted mail clogging 
> your system, you probably want to mess with the MTA itself. As I 
> said, I was delighted to find how simple it was with exim. I haven't
> dared look with sendmail! 
> 
> Telsa
> 
> 
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