Re: sendmail and Undeliverables
...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
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.