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Asad Ijaz

My Name is Asad Ijaz Khattak and I am the writer and blogger, known for my website "". I have writes about various topics related to technology, networking, and cybersecurity. I am also a Cisco Certified Network Professional (CCNP) and Cisco Certified Network Associate (CCNA). I have written several articles and tutorials on the website which can be used as a learning resource for people interested in networking and cybersecurity. I am the member and Editor of Proudly Team NetworkUstad


  1. Email Protocols – SMTP, POP and IMAP » Networkustad
    August 8, 2019 @ 10:45 am

    […] a client sends an email message, the client SMTP process connects with a server SMTP process on port 25. When the client and server set up a connection, then the client tries to send the email message […]


  2. stumble guys
    November 14, 2022 @ 1:45 pm

    When a client sends an email, the client’s SMTP process establishes a connection with the server’s SMTP process on port 25. The client tries to send the email message after the server and client establish a connection.


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