smtp – POFTUT

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What Is BCC (Blind Carbon Copy) In Emails? 0

What Is BCC (Blind Carbon Copy) In Emails?

Email is a popular way of communication in private life and business life. Emails can be sent to multiple recipients in different ways. To,CC (Carbon Copy),BCC (Blind Carbon Copy) can be used to specify recipient in different ways. BCC (Blind Carbon Copy) is a very useful feature for emails. To We have to start from the basic email options where To: is used to specify the recipients. To is used...

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How To Use Sendmail Command On Linux Tutorial with Examples?

sendmail is a mail transfer agent (MTA) used to send emails between computer systems by using simple mail transfer protocol (SMTP) . Sendmail project can be accessed from <a href=”http://www.sendmail.org”>www.sendmail.org</a> <h1>Install On Ubuntu, Debian, Mint, Kali</h1>sendmail  tool is provided by different packages on Ubuntu, Debian,Mint, Kali ordebbased distributions. In this case, we will install the package namedpostfix. <pre class=””>$ sudo apt install postfix</pre> <h1>Install On Fedora, CentOS, RedHat</h1> Inrpmbased distributions likeFedora, CentOS, RedHat...

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How To Specify Host, Port and Protocol For Tcpdump?

Tcpdump is everyday tool used by system and network administrator. We generally look simple use cases like host, port and protocol filter for tcpdump . In this tutorial we will look how to filter host, port and protocol in tcpdump. But keep in mind that tcpdump will requires administrator or root privileges. We can use root account or sudo command in order to gain root privileges. Specify Host Name Tcpdump can resolve host...

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How To Use OpenSSL s_client To Check and Verify SSL/TLS Of HTTPS Webserver?

OpenSSL provides different features and tools for SSL/TLS related operations. s_lient is a tool used to connect, check, list HTTPS, TLS/SSL related information. Simply we can check remote TLS/SSL connection with s_client . In this tutorials we will look different use cases of s_client . Check TLS/SSL Of Website The basic and most popular use case for s_client is just connecting remote TLS/SSL website. We will provide the web site with the HTTPS port...

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Linux mail and mailx Commands Tutorial With Examples and Send Email From Command Line

Linux have a lot of tools, services and applications related email. Email have different architecture than standard client server. We will look an command line based mailing application named mailx. mailx more advanced version of the mail tool. General Concept As stated in previous paragraph email systems are bit more complex than standard client server architecture. There are some terms we should learn before continue Mail Client is an application used by user...

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