You're reading from Effective Threat Investigation for SOC Analysts

Product typeBook

Published inAug 2023

PublisherPackt

ISBN-139781837634781

Edition1st Edition

Concepts

Cybersecurity

Author (1)

Mostafa Yahia

Email flow

An email flow is the flow path that an email follows and the hops that the email passes when sent from the sender until it's delivered to the recipient. The email crosses multiple hops between the sender and the recipient before it is delivered. Most of them use SMTP. Let’s take a look at these hops in detail:

Mail User Agent (MUA): This refers to the agent is used by the client to send the email. Examples include Outlook and browsers such as Google Chrome, Mozilla Firefox, and others.
Mail Submission Agent (MSA): The server that receives the email after the client has submitted it from its MUA.
Mail Transfer Agent (MTA): Also known as the SMTP relay server, this is the email server that receives the message from the MSA and passes it to several MTA servers until it’s delivered to the recipient’s mail exchange server.
Mail Exchange (MX): The email server that is responsible for receiving messages intended for a particular domain...

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Effective Threat Investigation for SOC Analysts

Published in: Aug 2023Publisher: PacktISBN-13: 9781837634781

Author (1)

Mostafa Yahia

Mostafa Yahia is a skilled and motivated threat investigator and hunter with a wealth of experience investigating and hunting down various cyber threats. He is a proven leader in building and leading cybersecurity-managed services such as SOC and threat-hunting services. Mostafa holds a bachelor's degree in computer science, which he earned in 2016, and has furthered his education by earning multiple industry-recognized certifications, including GCFA, GCIH, CCNA, and IBM QRadar. In addition to his professional work, Mostafa also shares his knowledge through free courses and lessons on his YouTube channel. Currently, he serves as the senior lead for cyber defence services in an MSSP company, overseeing SOC, TH, DFIR, and CA services.
Read more about Mostafa Yahia

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Email flow

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Author (1)

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