What version of mailx do I have Linux?

To find out what mailx package is installed on your system, check the “man mailx” output and scroll down to the end and you should see some useful information.

How do I see mail queue in Linux?

The name itself suggests, mailq i.e. “mail-queue”, this command in Linux prints the mail queue i.e the list of messages that are there in the mail queue….

1. QID: Specific ID alloted to message.
2. Size: Number of bytes contained in body of message.
3. Q-Time Time at which message entered the queue.

What is the difference between mail and mailx in Unix?

Briefly, mail is the older program, mailx (formerly nail in some implementations) is a newer version , with an extended mostly-but-not-totally-compatible interface. mailx is still quite old, created around 1986 and standarized as part of POSIX in 1992.

Does mailx use sendmail?

smtp Normally, mailx invokes sendmail(8) directly to transfer messages. If the smtp variable is set, a SMTP connection to the server specified by the value of this variable is used instead.

What port does mailx use?

When the local MTA attempts to deliver outgoing mail, it normally uses the SMTP protocol, which uses TCP port 25 as standard. If SMTP-over-SSL is configured for some particular mail destination, TCP port 465 might also be used, but this is somewhat uncommon.

What mail server does mailx use?

smtp Normally, mailx invokes sendmail(8) directly to transfer messages.

How does mailx work in Linux?

To send a message to one or more people, mailx can be invoked with arguments that are the names of people to whom the mail will be sent. The user is then expected to type in his message, followed by an ‘control-D’ at the beginning of a line, which signals the end of the message, and implicit approval to send it.

How do I open sendmail in Redhat 7?

How to Install Sendmail Server on CentOS/RHEL 7/6

1. Install Sendmail. If you don’t have installed Sendmail using the following command to install Sendmail with other required packages using yum package manager.
2. Configure Sendmail Server.
3. Recompile Sendmail Configuration.
4. Configure Domain-based E-mail Routing.

Does mailx use SMTP server?

Native SMTP support is present in heirloom-mailx , but not in the traditional bsd-mailx . The third method – connecting directly to recipient’s server – is almost never used, and no MUA supports it.