I have 2 issues I need to clear up
I have checked and rechecked with several online sites to see if we are an open relay and we aren't but it sure seams as though our server sends out a LOT of email every day. We only have about 7 users but the log says that there are thousand of emails being sent out every night
--------------------- sendmail Begin ------------------------
Bytes Transferred: 119938169
Messages Sent: 3402
Total recipients: 3668
23 User Unknown notifications
499 Save Mail Panic's
Top relays (recipients/connections - min 10 rcpts, max 50 lines):
2321/2206: localhost.localdomain [127.0.0.1]
1347/1196: root@localhost
I Also get a lot of Mail Delivery Subsystem emails with failed delivery attempts which leads me to believe even more that somehow we are an open relay, I just received this one and I know no one here sent it because I have been working alone here for the past seven hours.
The original message was received at Thu, 16 Nov 2006 00:23:50 -0500
from localhost.localdomain [127.0.0.1]
with id kAG5NmnE019124
----- The following addresses had permanent fatal errors -----
<bxbpbxbrkeraslx@hypercom.com>
(reason: 550 5.1.1 User unknown)
----- Transcript of session follows -----
... while talking to mail.hypercom.com.:
>>> >>> DATA
<<< 550 5.1.1 User unknown
550 5.1.1 <bxbpbxbrkeraslx@hypercom.com>... User unknown
<<< 503 5.5.2 Need Rcpt command.
Reporting-MTA: dns; mail.karibe.com
Received-From-MTA: DNS; localhost.localdomain
Arrival-Date: Thu, 16 Nov 2006 00:23:50 -0500
Final-Recipient: RFC822; bxbpbxbrkeraslx@hypercom.com
Action: failed
Status: 5.1.1
Remote-MTA: DNS; mail.hypercom.com
Diagnostic-Code: SMTP; 550 5.1.1 User unknown
Last-Attempt-Date: Thu, 16 Nov 2006 00:23:54 -0
We are still getting hammered with spam I have several thousand emails that I used to teach SpamAssassin what we consider spam but it doesn't seam to be helping
Summary:
Total Mail Rejected: 27
Can anyone offer any help in solving these issues?