Email is a key element in the arsenal of cyber attackers. Email is an ideal vector for introducing malicious code into a workplace or company (viruses, ransomware), or for tricking the recipient into clicking on a link to a fraudulent website (phishing).
For businesses, the first response is to scan incoming emails to ensure that only those consider healthy are transmitt. But what criteria should be How to evaluate us for this filtering? What are the main checkpoints set by email protection tools? Answer in this post!
At the SMTP transaction level
Even before examining the content of the emails, a first set of filtering barriers is put in place at the email routing protocol level. Here is the information examin:
Sending server – reveals a lot of interesting information. We start by making sure that your IP address is not on the block list . We also look at the iraq email list 312687 contact leads hostname – the way the sending server advertises itself – and the specific IP address. This checks the consistency between the sending server and its hostname . In practice, the checks perform on the sending server allow 70% to 90% of traffic to be reject .
Sender email address : This is mainly us to check that the sender domain actually exists . But it is also us for SPF (Server Policy Framework) checks. This measure, which is very common in companies, is intend to declare which servers are authoris to send mail from a given domain. How to evaluate It is an effective defence against spoofing and phishing attacks (often combin). Envelope and header addresses are also different for forward emails or mass mailings carri out by email platforms. This does not mean that the email is fraudulent. The quality of the checks – and of the protection tools – also lies in their ability to discern these cases.
At the email header level
The email itself contains a staggering 8 tricks of unscrupulous call centers amount of information, split between the header and the body. Much of the email quality analysis is done at the header level, with a wide variety of checkpoints.
Recipient : It is recommend to verify cg leads the existence of the recipient’s address using specific technologies.