forward - forward mail
/var/adm/forward/username $HOME/.forward
The .forward file allows a user to forward messages to
another host, or to invoke programs (such as vacation(1))
to process their mail. It is formatted as a series of
comma-separated addresses in the form: addr_1, addr_2, ...
Alternatively, each address can be on a separate line.
The newer sendmail.v8 program also allows the use of comments
(lines that begin with a ``#'') and blank lines.
As with the aliases(4) file, mail messages can be forwarded
to another host or given to programs for further
processing. The following is an example of the vacation
program. Assuming that the user's name is myra, create a
.forward file and add the following line: \myra,
"|/usr/bin/vacation myra"
The previous example forwards mail to myra (the backslash
prevents an accidental aliasing loop), and also sends a
copy of the message to the vacation program.
For security reasons, the file must be owned by the user
or by root and it should be writable only by the file
owner. In addition, the file must be readable by the
owner (myra) or root.
On traditional systems, only the $HOME/.forward file is
checked. The sendmail.v8 program allows the use of the
system-wide forwarding directory /var/adm/forward. By
default, this directory is checked for a forward file
prior to examining the users $HOME directory.
System-wide forwarding file. The per-user forwarding
file.
The sendmail command can hang trying to read the user's
$HOME/.forward file. If the user's home directory is NFSmounted
and temporarily unavailable, sendmail will stall
until the directory becomes available again. The use of
non-NFS mounted directories for the forwarding of files is
recommended.
The use of /var/adm/forward is supported only by sendmail.v8.
The actual path for /var/adm/forward is configurable in
the sendmail.cf file.
Incorrect file permissions/ownership are quietly ignored.
It is easy to create an accidental loop, for example, on
host_a myra@host_b and on host_b myra@host_a
Commands: aliases(4), sendmail.cf(4), sendmail(8) delim
off
forward(4)
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