Watchguard x550e - blocking email and checking logs

Posted on 2009-04-30
Last Modified: 2012-05-06
Hi everyone - our IP address keeps blacklisted. I am sure the server is not relaying and protected against an NDR attack. The only other option is there is a computer on the network that is sending out spam email.

We have a watchguard x550e firebox running firmware version 8.3

How do I configure the firebox to allow the mail server to send outgoing email?

And second, how do I check the logs or use the monitoring software to see all internal ip addresses that are sending outbound email so I can see if it is in fact another computer on the network?
Question by:steved309
    1 Comment
    LVL 32

    Accepted Solution

    I am assuming that you are running version 8.x or higher, add one more SMTP Service and configure as below:
    From: internal-ip-of-server; to ANY

    This would ensure that only the server can send outbound traffic.

    Thank you.

    Featured Post

    Maximize Your Threat Intelligence Reporting

    Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

    Join & Write a Comment

    Suggested Solutions

    Title # Comments Views Activity
    Site-to-Site VPN 6 83
    What does this mean to you?  Source side firewall 3 52
    Cisco help 4 34
    Cisco ASA 5505 with Verizon Fios 10 71
    In this tutorial I will show you with short command examples how to obtain a packet footprint of all traffic flowing thru your Juniper device running ScreenOS. I do not know the exact firmware requirement, but I think the fprofile command is availab…
    We sought a budget ($5,000) firewall solution that would provide all the performance we needed with no single point of failure.  Hosting a SAAS web application in our datacenter, it was critical that we find a way to keep connectivity up and inbound…
    Internet Business Fax to Email Made Easy - With eFax Corporate (, you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
    Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

    755 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    21 Experts available now in Live!

    Get 1:1 Help Now