Realtime Blackhole list (RBL) Question

My boss has a sympatico email account but for some odd reason, sympatico only allows your to send email (smtp) through outlook if your using your sympatico internet service. The problem is that my boss is now in Florida and far away from any sympatico service.
My colleague suggested we use a different SMTP server that [...]

Why has my server been added to a black list for "policy violation, unacceptable generic PTR record".

I have an SBS 2K3 Premium server.  It works great with no issues other than this black list problem.  About two weeks ago I started getting delay notices from the server saying that some messages hadn’t gone through.  After checking my server black list status I realized it had been added to one list @ [...]

Help! Sending spam from network!

I have a client who continues to get blacklisted. Their ISP is getting complaints that spam is originating from their IP. I have scanned all computers on the network and the server with nultiple AV and spyware scanners to no avail. I have followed all suggestions in the excellent article at http://www.amset.info/exchange/spam-cleanup.asp by Sembee. There [...]

How to remove server IP from spam CANNIBAL list ?

HI,
When some one trying to send an email on any domain on our server they are getting mail delivery failure.
Message they receiving  is :
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of itsrecipients. This is a permanent error. The following address(es) [...]

sendmail/firewall IP is black listed in CBL-XBL Spamhuas – any solution?

Our Live IP is blocked by cbl.abuseat.org.Well, I am using sendmail server as a mail server (MTA) on RHEL5. Our main firewall is sending the smtp traffic with the IP same as live IP of sendmail server. sendmail server configuration is fine according to CBL links belowhttp://cbl.abuseat.org/hostname.htmlhttp://www.cpqlinux.com/hostname.html

Worning message about Smurf

Hi All
   I would like to know how to block Smurf Attack   Now I have 3Com ADSL router at my home,  and all time I notify as follwoing
################################################Message: SmurfSource: XXX.XXX.XXX.255  (our network address)Destination:XXX.XXX.XXX.XXX ( IP Add of pc in side ), Type:3, Code:3 (from PPPoE1 Outbound)################################################
from message I don’t know witch pc make Smurf Attack, [...]

Message not delivered to hotmail.

The following message is not successfully delivered to hotmail. It doesn’t even make it into the junk folder. I have also tried adding the address to the whitelist and still no luck. This was a test message sent to gmail:
                                [...]

Unusual Mail Traffic in IMSA Mail gateway

Hi.. I am using IMSA 5000 Appliance as my Mail Gateway. I recently found Unusual Mail traffic. When I checked the Delivery Que status I found 500 mails going outside and My Network Monitor reported 900 MB SMTP traffic in one hour.  When I took mail tracking Logs there was 17,000 Mails and 90 % [...]

Spam mail coming from my email address.

We are running exchange 2003, a barracuda spam filter, and Outlook 2007.  We have about 20 users.  Just recently we are getting flooded with spam messages where the sender is the person reading the message.  Is there any way to stop this?  I have put a rule into effect to dump them into another folder [...]

Exchange 2007 Spamming

We are having major problems sending email from our Exchange 2007 Server. Our server is appearing on blacklists and our outbound email is being refused. Upon inspection of the Outbound SMTP Queue, I have found literally hundreds of outbound emails, all have "From: <>" and "To:" random email domains. Its clear to me that something [...]

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