There are a number of reasons to why your IP address may have been listed by Barracuda and other listing directories as having a poor reputation.
The reasons includes:
- The email server at your IP address contains a virus and has been sending out spam
- The email server at your IP address may be configured incorrectly
- The PC at your IP address may be infected with a virus or botnet software program
- Someone in the organization at your IP address may have a PC infected with a virus or botnet program
- Your IP address may be a dynamic IP address which was previously utilized by a known spammer
- The marketing department of a company at your IP address may be sending out bulk emails that do not comply with the CAN-SPAM Act.
- Your IP address may have a insecure wireless network attached to it which could allow unknown users to use it’s network connection to send out bulk emails.
- In some rare cases, your recipients’ Barracuda and other directories Spam Firewall may be misconfigured