From Barracuda's website:
We are sorry you have reached this page because an email was blocked based on its originating IP address having a "poor" reputation. The "poor" reputation may have been caused by one of the following reasons:
- Your email server contains a virus and has been sending out spam.
- Your email server may be misconfigured.
- Your PC may be infected with a virus or botnet software program.
- Someone in your organization may have a PC infected with a virus or botnet program.
- You may be utilizing a dynamic IP address which was previously utilized by a known spammer.
- Your marketing department may be sending out bulk emails that do not comply with the CAN-SPAM Act.
- You may have an insecure wireless network which is allowing unknown users to use your network to send spam. In some rare cases, your recipient's Barracuda Spam Firewall may be misconfigured.
There are several problems with the setup of your domain:
- Your MX record has a priority of 0 - some mail servers have a problem with this and it is recommended that you change it to 10.
- Your MX record points to healingcrystals.com whereas your mail server responds as host2.healingcrystals.com
- h
ost2.heali ngcrystals .com points to IP 72.52.222.233 whereas healingcrystals.com points to 72.52.222.231 - You also don't have an SPF record setup for your domain.
Please read my FAQ on problems sending mail to a specific domain which will help with this problem:
by: bjornlundePosted on 2009-10-23 at 16:08:40ID: 25649591
1. To get your IP adjusted in the Barracuda Reputation System submit a removal request at http://www.barracudacentra
2. I agree that paying to be whitelisted sounds dubious, but if it solves your problems, well it could be argued that this is $20 well spent. On the other hand emailreg.org is not an actual whitelist, but rather a sevice to tie IP addresses to domain names. You will not be automatically whitelisted by registering your IP and domain name. So, one might say that the de-listing is free of charge, and the $20 charge to identify your IP and tie it to your organization and domain name is a reasonable fee.
Take a look at this: http://www.emailreg.org/in
3. Any self respecting block list operator should have some serious routines in place to do proper checks before blacklisting an IP address. Barracuda claims to use a honeypot/spam-trap scheme to add/remove ip addresses from their BRBL.
http://www.barracudacentra
If this is the actual methodology used, your main focus should be to prevent unauthorized sending of e-mail from your network. One infected / zombied host behind your public IP could be enough to get your IP blacklisted. I would investigate if unauthorized SMTP traffic goes out through your firewall, and if this is the reason why you are blacklisted. Opt-out mass-mail should not get you on the list if this is the actual methodology. If not already done, then port 25 should be blocked in the firewall for all outgoing traffic except the actual mail server(s). If port 25 is already blocked, then I would start looking at outgoing mail logs to look for an account that has been compromised and subsequently used to send authenticated spam through your e-mail server.
Hope this helps you solve the situation. It's pretty annoying when you find yourself on a blacklist, as I'm sure many of us have experienced at some point.
Cheers,
Bjorn