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Full Discussion: Problems sending mail: Difference between Mail and Mailx?
Operating Systems Linux Red Hat Problems sending mail: Difference between Mail and Mailx? Post 302850391 by RedSpyder on Wednesday 4th of September 2013 03:31:11 PM
Old 09-04-2013
Problems sending mail: Difference between Mail and Mailx?
Whats the difference between mail and mailx?

I'm trying to troubleshoot a problem where I can send mail from server A with this
Code:
`echo $MESSAGE | mail -s "$SUBJECT" -r $FROM $RECIPIENTS`

command but executing the same command from server B throws me this error (Both servers are RHEL)

Code:
    mail: invalid option -- r
    Usage: mail [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...
                [-- sendmail-options ...]
           mail [-iInNv] -f [name]
           mail [-iInNv] [-u user]

Now... going through mail manpages to ty to understand whats happening, `man mail` gives me this:

In Server A

Code:
    MAILX(1)                         User Commands                        MAILX(1)
    
    NAME
           mailx - send and receive Internet mail
    
    SYNOPSIS
           mailx [-BDdEFintv~] [-s subject] [-a attachment ] [-c cc-addr] [-b bcc-addr] [-r from-addr] [-h hops]
                  [-A account] [-S variable[=value]] to-addr . . .
           mailx [-BDdeEHiInNRv~] [-T name] [-A account] [-S variable[=value]] -f [name]
           mailx [-BDdeEinNRv~] [-A account] [-S variable[=value]] [-u user]


But in server B

Code:
    MAIL(1)                   BSD General Commands Manual                  MAIL(1)
    
    NAME
         mail - send and receive mail
    
    SYNOPSIS
         mail [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr... [-- sendmail-options...]
         mail [-iInNv] -f [name]
         mail [-iInNv] [-u user]

Now... if I try `man mailx` in server B I get:

Code:
  MAILX(P)                   POSIX Programmerâs Manual                  MAILX(P)
    
    PROLOG
           This manual page is part of the POSIX Programmerâs Manual.  The Linux implementation of this interface may differ
           (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not  be  imple-
           mented on Linux.
    
    NAME
           mailx - process messages
    
    SYNOPSIS
       Send Mode
                  mailx [-s subject] address...
    
       Receive Mode
                  mailx -e
    
                  mailx [-HiNn][-F][-u user]
    
                  mailx -f[-HiNn][-F][file]

Server B has a different version of mail than Server A? Mailx and Mail are different things? I would like to use the -r option I use in server A but in server B and I don't really know whats happening.
 

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LEARN ABOUT HPUX

mhmail

MHMAIL(1)                                                            [nmh-1.5]                                                           MHMAIL(1)

NAME

       mhmail - send or read mail

SYNOPSIS

       mhmail [addrs ...]  [-body text] [-cc addrs ...]  [-from addr] [-subject subject] [-version] [-help]

DESCRIPTION

       mhmail  is intended as a replacement for the standard Berkeley mail program (mail or mailx), which is compatible with nmh.  This program is
       intended for the use of programs such as cron, which expect to send mail automatically to various users.  It is also used  by  various  nmh
       commands  to  mail  various  error  notifications.  Although mhmail can be used interactively, it is recommended that comp and send be used
       instead to send messages.

       When invoked without arguments, it simply invokes inc to incorporate new messages from the user's maildrop.  When  one  or  more  users  is
       specified, a message is read from the standard input and spooled to a temporary file.  mhmail then invokes post with the name of the tempo-
       rary file as its argument to deliver the message to the specified user.

       The -subject subject switch can be used to specify the "Subject:" field of the message.

       By default, mhmail will read the message to be sent from the standard input.  You can specify the text of the message at the  command  line
       with  the  -body text switch.  If the standard input has zero length, mhmail will not send the message.  You can use the switch -body "" to
       force an empty message.

       Normally, addresses appearing as arguments are put in the "To:" field.  If the -cc switch is used, all addresses following it are placed in
       the "cc:" field.

       By using -from addr, you can specify the "From:" header of the draft.  Naturally, post will fill-in the "Sender:" header correctly.

FILES

       /usr/bin/mh/inc            Program to incorporate maildrop into folder
       /usr/lib/mh/post           Program to deliver a message
       /tmp/mhmail*               Temporary copy of message

SEE ALSO

       inc(1), post(8)

DEFAULTS

       None

CONTEXT

       If inc is invoked, then inc's context changes occur.

MH.6.8                                                             11 June 2012                                                          MHMAIL(1)
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