Re: resend question

On Fri, 8 Apr 2005 14:55 +0100, Sujit Choudhury wrote to majordomo-users:

> we have majordomo set up as follows:
> listname: "|/usr/local/majordomo/wrapper resend -l \
> listname listname-out,nobody"
>
> Is there any reason why we need the listname-out,nobody?

If you don't do that, the address of your listname-out alias appears in 
the headers of outgoing list messages.  If a spammer picks up on that, 
you'll get spam sent directly to the listname-out alias.  Resend is 
bypassed, so the list's restrict_post setting has no effect.

If you use sendmail, you can add another layer of protection against this 
by adding the following to your virtusertable:

listname-out@yourdomain        error:nouser User unknown

This tells sendmail to reject mail sent directly to 
listname-out@yourdomain, but normal alias expansion still occurs so mail 
sent to listname@yourdomain isn't affected.

-- 
Chip Old (Francis E. Old)             E-Mail:  [email protected]
BCPL Network Administrator            Phone:   410-887-6180
BCPL.NET Internet Services Manager    FAX:     410-887-2091
320 York Road
Towson, MD 21204-5179  USA