Protection Against Spam Using Outbound Spam Filtering Open Source
In the case of outbound spam filtering, the service provider examines the spam present on their customer’s network. Keeping a check over one’s customers through outbound spam filtering is necessary because a higher rate of outbound spam will disrupt the network and block the internet connection, which will result in hindrance in the movement of legitimate email traffic.
An attempt to control outbound spam contributes to the global effort of restricting inbound spam from entering the user’s inbox. There are many reputed systems like outbound spam office 365, which does the work of tracking the number of spam coming from various IP addresses and blocking the IP addresses, which send a large number of spam emails. These systems also limit the IP addresses of the spammers for indulging in illegal sending practices by way of adding them to the blacklist.
Working Of Outbound Spam Filter
When it comes to spam prevention, the only thing one can rely upon is the IP address of the spammer. Spammers can use fake email addresses, or they can even imitate a legitimate user also. Hence, the only thing one uses for the identification of the spam sender is the IP address. So, here is how an outbound spam filtering open source software works:
- The service provider can program the outbound spam filtering system to find out a particular user on the network based on the authentication credentials. For instance, the filter can check and authenticate whether the password which the user is entering for sending the mail, via server, is correct or not.
- By keeping a track on particular users, the outbound spam filter manages to keep a check over any spam-like action on a user to user basis, which in turn helps in restricting any spam from escaping through the IP address of the mail server. This process assists in the protection of the legitimate mail servers from being added to the blacklist and getting blocked.
- Outbound spam filtering does the work of analysis of the content of an email and rejecting it in case of spam.
- The most crucial feature of outbound spam filtering is the ability to find out the correct sender of a particular spam email. It also monitors the long term behavior of individual email senders through outbound SMTP proxy and reviews any suspicious pattern in sending emails.
Choosing An Ideal Outbound Spam Filtering Open Source System
While selecting the capabilities of an ideal outbound spam filtering open-source system, one should keep the following points in mind:
- The system should match with one’s architectural design and provide transparent proxy services to tackle various other unmanaged services such as VPS, dedicated hosting machines or subscriber type networks, etc.
- Pick the system which has the facility of centralized control so that system configuration and analysis of the data can be done centrally with ease.
- The analytical capability of the system should be robust so that the tools used by administrators can analyze and review the behavior of the sender along with the delivery results.
- A customizable system is a good option because one can customize it as per the policy scripts and rules, which results in the rapid response of the enterprise, from within the infrastructure, to an upcoming spam attack.
- One should pick the system whose vendor has got a solid reputation in the field of IP management and has sound relations with bulk email receivers as well as blacklist operators.
- The system can notify the user automatically whenever an account appears to be compromised.
- A sound outbound spam filtering system must contain the feature of identifying any potential spam campaigns along with existing campaigns spreading over the internet.
- Identifying the true identity of the email sent is a must-have feature.
- Installing, configuring, and deploying the process of the system must be quick.
Going through the details mentioned above and applying for prevention will help all the users out to prevent any spam from moving in the outbound direction from their mailing server using an outbound spam filtering open-source software.
Join the thousands of organizations that use DuoCircle
Find out how affordable it is for your organization today and be pleasantly surprised.