Tag: SPAM

Nagios – Checking if we are on SPAM blacklists

What's up txabales!!! We come with something that can fit us all! Anyone who has a Nagios or Centreon environment already set up (or want to cheer up), Why don't we control if our public IPs or the IP addresses through which our organization's mail leaves are blacklisted?? So far we know how we found out that you are on blacklists… Why either the mail doesn't go out or doesn't come in?, No? Get ahead of the curve and check the main blacklists!!

Installing an Exchange in the DMZ 2010 with the perimeter transport function

If we have a Microsoft Exchange Server organization already deployed on our network and we want to give it more security, we may deploy an Exchange server in the DMZ or DMZ with the intent not to directly expose our Exchange servers on the LAN to the internet. Microsoft has a role or function called Edge Transport function that will allow us to filter spam, as well as antivirus or create transport rules.

Setting up RBL lists in Fortigate to avoid SPAM

If our intention is to block all spam that passes through our firewall, RBL lists are most commonly configured, and this document shows how to configure them on a Fortinet firewall, in a Fortigate. RBL is the acronym for “Realtime Blackhole list” or “Real-time blacklist”. These are systems that publish a database with a list of IP addresses that have been the source of unsolicited email sendings (SPAM). These databases are consulted online in real time by AntiSpam systems or mail servers before accepting a new email and said email will be marked as spam or we will reject it, according to interest.