WHOM(1) [nmh-1.5] WHOM(1)
whom - report to whom a message would go
whom [-alias aliasfile] [-check | -nocheck] [-draftfolder +folder] [-draftmessage msg] [-nodraftfolder] [-server servername] [-port port-
name/number] [-sasl] [-saslmech mechanism] [-snoop] [-user username] [-tls] [-notls] [file] [-draft] [-version] [-help]
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) fea-
ture. Consult the mh-draft(5) man page for more information.
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 con-
tain authentication 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 authentication 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
password). -saslmech switch can be used to select a particular SASL mechanism, and the the -user switch can be used to select a authoriza-
tion userid to provide to SASL other than the default.
If SASL authentication is successful, nmh will attempt to negotiate a security layer for session encryption. Encrypted data is labelled
with `(encrypted)' and `(decrypted)' when viewing the SMTP transaction with the -snoop switch. The -saslmaxssf switch can be used to
select the maximum value of the Security Strength Factor. This is an integer value and the exact meaning of this value depends on the
underlying SASL mechanism. A value of 0 disables encryption.
If nmh has been compiled with TLS support, the -tls and -notls switches will require and disable the negotiation of TLS support when con-
necting to the SMTP MTA. Encrypted data is labelled with `(tls-encrypted)' and `(tls-decrypted)' when viewing the SMTP transction with the
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) for more information.
$HOME/.mh_profile The user profile
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
`file' defaults to <mh-dir>/draft
`-alias' defaults to /etc/nmh/MailAliases
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
addresses, 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.
MH.6.8 11 June 2012 WHOM(1)