Spf=pass (: domain of designates 20 asĭmarc=pass (p=NONE sp=QUARANTINE dis=NONE) om= UYlVoXEc/rOvmWMSz0bf6UxT1FQ62VLJ75re8noQuJIISiNf1HPZuRU6NRiHufPxcis2ĪRC-Authentication-Results: i=1 mx. ĭkim=pass header.s=20161025 header.b=JygmyFja HEa5iBNU3eQ24eo3bf1UQUGSC0LfslI2Ng1OXKtneFKEOYSr16zWv8Tt4lC1YgaGLDqf WbM+t6yT5kPC7iwg6k2IqPMb2+BHQps6Sg8uk1GeCJlFlz9TICELcvmQMBaIP//SNlo9 H=to:subject:message-id:date:from:mime-version:dkim-signature īh=DYQlcmdIhSjkf9Cy8BJWGM+FXerhsisaYNX7ejF+n3g= ī=xs6WIoK/swyRWSYw7Nrvv8z1Cx8eAhvlBqBZSbRQTVPvFCjszF4Eb1dWM0s5V+cMAiĭbkrMBVVxQTdw7+QWU0CMUimS1+8iktDaJ6wuAHu2U9rfOHkY6EpTSDhK2t9BwfqO/+I XpPAEyQI4leZT+DQY+ukoXRFQIWDNEfkB5l18GcSKurxn5/K8cPI/KdJNxCKVhTALdFWĪRC-Message-Signature: i=1 a=rsa-sha256 c=relaxed/relaxed d= s=arc-20160816 X-Received: by 2002:a92:5e1d:: with SMTP id s29mr19048560ilb.245.1596027080539 ĪRC-Seal: i=1 a=rsa-sha256 t=1596027080 cv=none ī=Um/is48jrrqKYQMfAnEgRNLvGaaxOHC9z9i/vT4TESSIjgMKiQVjxXSFupY3PiNtMaĩFPI1jq3C4PVsHodzz6Ktz5nqAWwynr3jwld4BAWWR/HBQoZf6LOqlnTXJskXc58F+ikĤnuVw0zsWxWbnVI2mhHzra//g4L0p2/eAxXuQyJPdso/ObwQHJr6G0wUZ+CtaYTIjQEZĭJt6v9I2QGDiOsxMZz0WW9nFfh5juZtg9AJZ5ruHkbufBYpL/sFoMiUN9aBLJ8HBhJBN It’s just that someone is sending emails from their friend’s spoofed email address, and it is not that their account is hacked.īy analyzing email headers, one can know whether the email he received is from a spoofed email address or a real one. Spoofing is a technique using which one can pretend to be someone else, and a normal user would think for a moment that it’s his friend or some person he already knows. Email header analysis helps in identifying most of the email related crimes like spear phishing, spamming, email spoofing etc. This analysis consists of both the study of the content body and the email header containing the info about the given email. Email Header Analysis:Įmail forensics starts with the study of email header as it contains a vast amount of information about the email message. That is why in the email header, we can find information about multiple servers. The last MTA present just before the MUA decodes the message and sends it to MUA at the receiving end. Whenever MUA sends a message, it goes to MTA which decodes the message and identifies the location it is meant to be sent by reading header information and modifies its header by adding data then passes it to MTA at the receiving end. There are different MUA’s like Gmail, Outlook etc. MUA is the program at the client end that is used to read and compose emails. When a user sends an email, the email doesn’t go directly into the mail server at the recipient’s end rather, it passes through different mail servers. Email forensics also reforms to the forensics of client or server systems suspected in an email forgery. Email forensics is the analysis of source and content of the email message, identification of sender and receiver, date and time of email and the analysis of all the entities involved. To mitigate these attacks and catch the people responsible, we use email forensics and techniques like performing header analysis, server investigation, sender mailer fingerprints etc.
Email is the most common source of phishing attacks.
Hackers can also exploit open relay servers to carry out massive social engineering. Hackers can forge the email headers and send the email anonymously for their malicious purposes. This medium for communication has become vulnerable to different kinds of attacks. Usage of email services in business activities like banking, messaging and sending file attachments increased at a tremendous rate. Email is one of the most popular services used over the internet and has become a primary source of communication for organizations and the public.
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