.\" $NetBSD: vacation.1,v 1.32.2.1 2023/06/27 18:12:09 martin Exp $ .\" .\" Copyright (c) 1985, 1987, 1990, 1991, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)vacation.1 8.2 (Berkeley) 4/28/95 .\" .Dd May 6, 2019 .Dt VACATION 1 .Os .Sh NAME .Nm vacation .Nd return .Dq I am not here indication .Sh SYNOPSIS .Nm .Fl dIi .Op Fl f Ar databasefile .Op Fl m Ar messagefile .Op Fl r Ar interval .Op Fl t Ar interval .Nm .Fl dj .Op Fl a Ar alias .Op Fl F Ar F|R|S .Op Fl f Ar databasefile .Op Fl m Ar messagefile .Op Fl s Ar sender .Op Fl T Ar A|D .Ar login .Sh DESCRIPTION .Nm returns a message to the sender of a message telling them that you are currently not reading your mail. The intended use is in a .Pa .forward file. For example, your .Pa .forward file might have: .Bd -literal -offset indent \eeric, "|/usr/bin/vacation -a allman eric" .Ed which would send messages to you (assuming your login name was eric) and reply to any messages for .Dq eric or .Dq allman . .Pp Available options: .Bl -tag -width Ds .It Fl a Ar alias Handle messages for .Ar alias in the same manner as those received for the user's login name. .It Fl d Turn debugging on; don't send an actual message, but print it on stdout. .It Fl f Ar database_file Use the specified .Ar database_file prefix and append .Dv \.db to it instead of .Dv $HOME/.vacation.db . .It Fl F Ar F|R|S Make .Nm additionally look in From: (F), Return-Path: (R), or Sender: (S) headers to determine the From: field. .It Fl i .It Fl I Initialize the vacation database files. It should be used before you modify your .Pa .forward file. .It Fl j Do not check if the recipient is present in the .Dv To: or .Dv Cc: lines. Usage of this option is strongly discouraged because it will result in .Nm replying to mailing lists or other inappropriate places (e.g., messages that you have been .Dv Bcc to). .It Fl m Ar message_file Use .Ar message_file instead of .Dv $HOME/.vacation.msg . .It Fl s Ar sender Reply to .Ar sender instead of the value read from the message. .It Fl r Ar interval .It Fl t Ar interval Set the reply interval to .Ar interval days. If the .Ar interval number is followed by .Dv w , .Dv d , .Dv h , .Dv m , or .Dv s then the number is interpreted as weeks, days, hours, minutes, or seconds respectively. The default .Ar interval is one week. An .Ar interval of .Dq 0 means that a reply is sent to each message, and an interval of .Dq Li infinite (actually, any non-numeric character) will never send more than one reply. It should be noted that intervals of .Dq Li \&0 are quite dangerous, as it allows mailers to get into .Dq I am on vacation loops. .It Fl T Ar A|D Make .Nm additionally look in Apparently-To: (A) or Delivered-To: (D) headers to determine the To: field. .El .Pp No message will be sent unless .Ar login (or an .Ar alias supplied using the .Fl a option) is part of either the .Dq To: or .Dq Cc: headers of the mail. .Pp No messages from .Dq ???-REQUEST , .Dq Postmaster , .Dq Tn UUCP , .Dq MAILER , or .Dq MAILER-DAEMON will be replied to (where these strings are case insensitive). .Pp No notification is sent if a .Dq Precedence: bulk .Dq Precedence: list .Dq Precedence: junk line or an .Dq Auto-Submitted: line with any qualifier except .Dq no are included in the mail headers. .Nm will include these headers in its response to avoid auto-responder loops. .Pp The people who have sent you messages are maintained as a .Xr db 3 database in the file .Pa .vacation.db in your home directory. .Pp .Nm expects a file .Pa .vacation.msg , in your home directory containing a message to be sent back to each sender. It should be an entire message (including headers). If the message contains the string .Dv $SUBJECT then it will will be replaced with the subject of the original message. For example, it might contain: .Pp .Bd -literal -offset indent -compact From: eric@CS.Berkeley.EDU (Eric Allman) Subject: I am on vacation Delivered-By-The-Graces-Of: The Vacation program I am on vacation until July 22. Your mail regarding "$SUBJECT" will be read when I return. If you have something urgent, please contact Keith Bostic . --eric .Ed .Pp .Nm reads the first line from the standard input for a .Ux .Dq From line to determine the sender. .Xr sendmail 1 includes this .Dq From line automatically. .Pp Fatal errors, such as calling .Nm with incorrect arguments, or with non-existent .Ar login Ns Ar s , are logged in the system log file, using .Xr syslog 3 . .Sh FILES .Bl -tag -width "vacation.dirxxx" -compact .It Pa ~/.vacation.db database file .It Pa ~/.vacation.msg message to send .El .Sh SEE ALSO .Xr sendmail 1 , .Xr syslog 3 .Pp RFC 2076 , RFC 3834 .Sh HISTORY The .Nm command appeared in .Bx 4.3 . .Sh BUGS Adding .Fl T Ar A or .Fl T Ar D should only be done for misconfigured or non-compliant MTAs. Doing so may auto-respond to messages that were not supposed to be replied to.