Re: sendmail and Undeliverables

2006-03-02 Thread Alexander Bochmann
...on Wed, Mar 01, 2006 at 05:01:52PM -0600, Joel Gudknecht wrote:

  I'm concerned that sendmail is even accepting these messages as they
  have nothing to do with my domain and I don't know how to prevent this
  behavior, any info on this subject would be appreciated, thank you.

From the snippet you posted, it seems as if someone 
sends spam using your address/domain as sender, and 
you get the bounces. Unfortunately, nothing unusual 
about that, and not much you can do.

Alex.



sendmail and Undeliverables

2006-03-01 Thread Joel Gudknecht
I've recently setup an access list with the following:

To:mydomain.com REJECT
To:[EMAIL PROTECTED]   OK
To:[EMAIL PROTECTED]   OK

etcetera, which has really helped in reducing the amount of DSN
reports I receive. (Thanks to Claus A_mann for the suggestion)

I'm still getting a couple here and there and I'm trying to figure out
how to prevent them as it concerns me a little.

Here is a sample:

Your message did not reach some or all of the intended recipients.

  Subject:  Returned mail: see transcript for details
  Sent: 2/28/2006 11:58 AM

The following recipient(s) could not be reached:

  [EMAIL PROTECTED] on 3/1/2006 4:46 PM
The e-mail account does not exist at the organization this
message was sent to.  Check the e-mail address, or contact the
recipient directly to find out the correct address.
 mfg.mydomain.com #5.1.1 SMTP; 550 RCPT
TO:[EMAIL PROTECTED] User unknown


I'm concerned that sendmail is even accepting these messages as they
have nothing to do with my domain and I don't know how to prevent this
behavior, any info on this subject would be appreciated, thank you.