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FORWARD(5) BSD File Formats Manual FORWARD(5)
forward — email forwarding information file
Users may put a .forward file in their home directory. If this
file exists, smtpd(8) forwards email to the destinations specified
therein.
A .forward file contains a list of expansion values, as described
in aliases(5). Each expansion value should be on a line by itself.
However, the .forward mechanism differs from the aliases mechanism
in that it disallows file inclusion (:include:) and it performs
expansion under the user ID of the .forward file owner.
Permissions on the .forward file are very strict and expansion is
rejected if the file is group or world-writable; if the home
directory is group writeable; or if the file is not owned by the
user.
Users should avoid editing the .forward file directly, to prevent
delivery failures from occurring if a message arrives while the
file is not fully written. The best option is to use a temporary
file and use the mv(1) command to atomically overwrite the former
.forward. Alternatively, setting the sticky(8) bit on the home
directory will cause the .forward lookup to return a temporary
failure, causing mails to be deferred.
~/.forward Email forwarding information.
The following file forwards mail to “user@example.com”, and pipes
the same mail to “examplemda”.
# empty lines are ignored
user@example.com # anything after # is ignored
"|/path/to/examplemda"
aliases(5), smtpd(8)
This page is part of the OpenSMTPD (a FREE implementation of the
server-side SMTP protocol) project. Information about the project
can be found at https://www.opensmtpd.org/. If you have a bug
report for this manual page, see
⟨https://github.com/OpenSMTPD/OpenSMTPD/issues⟩. This page was
obtained from the project's upstream Git repository
⟨https://github.com/OpenSMTPD/OpenSMTPD.git⟩ on 2022-12-17. (At
that time, the date of the most recent commit that was found in the
repository was 2022-09-30.) If you discover any rendering problems
in this HTML version of the page, or you believe there is a better
or more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
BSD February 13, 2021 BSD
Pages that refer to this page: mailaddr(7)
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