# phpman > man > whom(1)

[WHOM(1mh)](https://www.chedong.com/phpMan.php/man/WHOM/1mh/markdown)                                                                                  [WHOM(1mh)](https://www.chedong.com/phpMan.php/man/WHOM/1mh/markdown)



## NAME
       whom - show to whom an nmh message would be sent

## SYNOPSIS
       **whom** [**-help**] [**-version**] [**-alias** _aliasfile_] [**-check** | **-nocheck**] [**-draftfolder** _+folder_]
            [**-draftmessage** _msg_] [**-nodraftfolder**] [**-mts** _smtp_ | _sendmail/smtp_ | _sendmail/pipe_]
            [**-server** _servername_] [**-port** _port-name/number_] [**-sasl**] [**-saslmech** _mechanism_] [**-snoop**]
            [**-user** _username_] [**-tls**] [**-initialtls**] [**-notls**] [_file_] [**-draft**]

## DESCRIPTION
       **whom** is used to expand the headers of a message into a set of addresses and optionally verify
       that those addresses are deliverable at that time (if **-check** is given).

       The **-draftfolder** _+folder_ and **-draftmessage** _msg_ switches invoke the **nmh** draft folder facility.
       This is an advanced (and highly useful) feature.  Consult the [_mh-draft_(5)](https://www.chedong.com/phpMan.php/man/mh-draft/5/markdown) man page  for  more
       information.

       The mail transport system default is provided in _/etc/nmh/mts.conf_ but can be overridden here
       with the **-mts** switch.

       If nmh is using the SMTP MTA, the **-server** and the **-port** switches can be used to override  the
       default  mail server (defined by the _/etc/nmh/mts.conf_ servers entry).  The **-snoop** switch can
       be used to view the SMTP transaction.  (Beware that the SMTP transaction may contain  authen‐
       tication information either in plaintext or easily decoded base64.)

       If  **nmh** has been compiled with SASL support, the **-sasl** switch will enable the use of SASL au‐
       thentication with the SMTP MTA.  Depending on the SASL mechanism used, this  may  require  an
       additional  password prompt from the user (but the _netrc_ file can be used to store this pass‐
       word, as described in the [mh-profile(5)](https://www.chedong.com/phpMan.php/man/mh-profile/5/markdown) man page).  The **-saslmech** switch can be used  to  se‐
       lect  a particular SASL mechanism, and the **-user** switch can be used to select a authorization
       userid to provide to SASL other than the default.   The  credentials  profile  entry  in  the
       [mh-profile(5)](https://www.chedong.com/phpMan.php/man/mh-profile/5/markdown) man page describes the ways to supply a username and password.

       If SASL authentication is successful, **nmh** will attempt to negotiate a security layer for ses‐
       sion encryption.  Encrypted data is labelled with `(encrypted)' and `(decrypted)' when  view‐
       ing  the SMTP transaction with the **-snoop** switch; see the **post** man page description of **-snoop**
       for its other features.

       If **nmh** has been compiled with TLS support, the **-tls**, **-initialtls**, and  **-notls**  switches  will
       require  and  disable  the  negotiation  of TLS support when connecting to the SMTP MTA.  En‐
       crypted data is labelled with `(tls-encrypted)' and `(tls-decrypted)' when viewing  the  SMTP
       transaction  with  the **-snoop** switch; see the **post** man page description of **-snoop** and the TLS
       flags for more details.

       The files specified by the profile entry “Aliasfile:” and any additional alias files given by
       the **-alias** _aliasfile_ switch will be read (more than one file, each preceded by **-alias**, can be
       named).  See [_mh-alias_(5)](https://www.chedong.com/phpMan.php/man/mh-alias/5/markdown) for more information.

## FILES
       $HOME/.mh_profile          The user profile

## PROFILE COMPONENTS
       Path:                To determine the user's nmh directory
       Draft-Folder:        To find the default draft-folder
       Aliasfile:           For a default alias file
       postproc:            Program to post the message

## SEE ALSO
       [_mh-alias_(5)](https://www.chedong.com/phpMan.php/man/mh-alias/5/markdown), [_mh-profile_(5)](https://www.chedong.com/phpMan.php/man/mh-profile/5/markdown), [_post_(8)](https://www.chedong.com/phpMan.php/man/post/8/markdown)

## DEFAULTS
       `**file**' defaults to <mh-dir>/draft
       `**-nocheck**'
       `**-alias**' defaults to  /etc/nmh/MailAliases

## CONTEXT
       None

## BUGS
       With the **-check** option, **whom** makes no guarantees that the addresses listed as  being  ok  are
       really  deliverable,  rather,  an address being listed as ok means that at the time that **whom**
       was run the address was thought to be deliverable by the transport service.   For  local  ad‐
       dresses,  this  is absolute; for network addresses, it means that the host is known; for uucp
       addresses, it (often) means that the **UUCP** network is available for use.



nmh-1.7.1                                    2016-09-23                                    [WHOM(1mh)](https://www.chedong.com/phpMan.php/man/WHOM/1mh/markdown)