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	1	.TH CHPOBOX 1 "5 Feb 1988" "Project Athena"
	2	\" RCSID: $Header$
	3	.SH NAME
	4	chpobox \- change address at which user receives mail
	5	.SH SYNOPSIS
	6	.B chpobox
	7	[
	8	.B username
	9	]
	10
	11	or
	12
	13	.B chpobox
	14	[ \-s
	15	.B address
	16	] [ \-p ] [ -u
	17	.B username
	18	]
	19
	20	.SH DESCRIPTION
	21	Your post office box is what determines where you will receive
	22	mail. It can be of two types:
	23	.I POP,
	24	which is what you have by default, or
	25	.I SMTP
	26	which allows you to specify an alternate address for your mail.
	27
	28	In the first use of this command, the post office box of the
	29	user whose name corresponds to the single argument
	30	.I username
	31	(or your own name if
	32	.I username
	33	is not specified) is displayed.
	34
	35	In the second use, this command sets the
	36	actual address that will receive mail sent to
	37	.I username@ATHENA.MIT.EDU
	38	(where
	39	.I username
	40	is your own name if you have not specified it on the command line).
	41	It should be used if you want to change where you will
	42	receive mail.
	43
	44	The
	45	.I chpobox
	46	command is used instead of the file
	47	.I .forward,
	48	which would be used with standard UNIX mail.
	49
	50	In order to change the address that receives mail sent to
	51	.I username@ATHENA.MIT.EDU,
	52	use the
	53	.B -s
	54	option. Specifically, to reroute your mail to
	55	the address
	56	.I name@host,
	57	you would issue the command
	58
	59	.nf
	60	.nj
	61	chpobox -s name@host.
	62	.fi
	63
	64	To restore your post office box to its original Athena default,
	65	use the
	66	.B -p
	67	flag. This will set your mailbox to the last post office server
	68	it was using.
	69	.PP
	70
	71	Only one of
	72	.B -p
	73	or
	74	.B -s
	75	may be used at a time.
	76
	77	Note that the actual change will not take place on the mail hub
	78	for several hours.
	79
	80	Regular users may change and retrieve information about only
	81	their own post office boxes. Moira database administrators can
	82	change or retrieve information about any user's post office box,
	83	specifying the user with the
	84	.B -u
	85	option.
	86
	87	.SH NOTE
	88
	89	When a mailbox is stored in the central database, any host mentioned
	90	will have its name canonicalized to a standard form. If for some
	91	reason you don't want to have the hostname canonicalized, put
	92	.B just the hostname
	93	in double-quotes. For example, the command
	94	.nf
	95	.nj
	96	chpobox -s jrhacker@\\"lcs.mit.edu\\"
	97	.fi
	98	will not be canonicalized to jrhacker@ptt.lcs.mit.edu, as it would
	99	otherwise. Also note that the double-quotes were preceded by
	100	backslashes to get them past the shell.
	101
	102	.SH SEE ALSO
	103	moira(1),
	104
	105	Moira Section of the Project Athena Technical Plan.