Connect. Communicate. Collaborate. Securely.

Home » Kerio User Forums » Kerio Connect » it seems my email server is under attach, any suggestion?
  •  
wyx2000

Messages: 32
Karma: 0
Send a private message to this user
Last night, a lot of emails come from or go to web<_a.t_>websecurity.org, obviously they are not from my clients. It seems someone break in and use my SMTP server, see the mail log below. My SMTP setting is relay for local IPs or User authenticated through SMTP for outgoing mail. I am not sure how they break in there, and I don;t see any client account in the log. Any idea? thanks


[05/Oct/2008 22:09:17] Recv: Queue-ID: 48e99d7c-0001e4de, Service: SMTP, From: <web<_a.t_>websecurity.org>, To: <sales<_a.t_>accessbrands.co.uk>, Size: 1036, Sender-Host: 75.145.48.34, User: support<_a.t_>[mydomain].com
[05/Oct/2008 22:09:18] Sent: Queue-ID: 48e99d78-0001e4dc, Recipient: <njb1441<_a.t_>ggr.co.uk>, Result: relayed, Status: 2.0.0
[05/Oct/2008 22:09:18] Recv: Queue-ID: 48e99d7e-0001e4df, Service: DSN, From: <>, To: <web<_a.t_>websecurity.org>, Size: 1859, Report: failed
[05/Oct/2008 22:09:18] Sent: Queue-ID: 48e99d7a-0001e4dd, Recipient: <j.a.shaw<_a.t_>bham.ac.uk>, Result: failed, Status: 5.1.1 550 ** No mail box available for this user **
[05/Oct/2008 22:09:23] Sent: Queue-ID: 48e99d7e-0001e4df, Recipient: <web<_a.t_>websecurity.org>, Result: failed, Status: 5.1.1 550-5.1.1 The email account that you tried to reach does not exist. Please
[05/Oct/2008 22:09:23] 550-5.1.1 try double-checking the recipient's email address for typos
[05/Oct/2008 22:09:23] 550-5.1.1 or unnecessary spaces. Learn more at
[05/Oct/2008 22:09:23] 550 5.1.1 http://mail.google.com/support/bin/answer.py?answer=6596 30si11663133wfa.10

  •  
Pavel Dobry (Kerio)

Messages: 5245
Karma: 251
Send a private message to this user
Change the password for user support<_a.t_>[mydomain].com and use more complex password to make it hard for guessing.
Previous Topic: Unauthorized Sent Mails
Next Topic: Winroute Pro
Goto Forum:
  


Disclaimer:
Kerio discussion forums are intended for open communication between forum members and may contain information and material posted by members which may be useful in learning about Kerio products. The discussion forums are not intended to provide technical support for any specific product. Any information implied or expressed in the discussion forums is that of the posting member. Kerio is in no way responsible for the information posted in the forums, or its accuracy. Kerio employees may participate in the discussions, but their postings do not represent an offical position of the company on any issues raised or discussed. Kerio reserves the right to monitor and maintain the forums to promote free and accurate exchange of information.

Current Time: Mon Nov 20 08:58:32 CET 2017

Total time taken to generate the page: 0.00379 seconds
.:: Contact :: Home ::.
Powered by: FUDforum 3.0.4.