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diff --git a/man7/mailaddr.7 b/man7/mailaddr.7 new file mode 100644 index 000000000..f2f624a36 --- /dev/null +++ b/man7/mailaddr.7 @@ -0,0 +1,114 @@ +.\" +.\" Copyright (c) 1983, 1987 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms are permitted +.\" provided that the above copyright notice and this paragraph are +.\" duplicated in all such forms and that any documentation, +.\" advertising materials, and other materials related to such +.\" distribution and use acknowledge that the software was developed +.\" by the University of California, Berkeley. The name of the +.\" University may not be used to endorse or promote products derived +.\" from this software without specific prior written permission. +.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR +.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED +.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +.\" +.\" @(#)mailaddr.7 6.5 (Berkeley) 2/14/89 +.\" +.\" Extensively rewritten by Arnt Gulbrandsen <agulbra@troll.no>. My +.\" changes are placed under the same copyright as the original BSD page. +.\" +.\" Adjusted by Arnt Gulbrandsen <arnt@gulbrandsen.priv.no> in 2004 to +.\" account for changes since 1995. Route-addrs are now even less +.\" common, etc. Some minor wording improvements. Same copyright. +.\" +.TH MAILADDR 7 2004-09-15 linux "Linux User's Manual" \" -*- nroff -*- +.UC 5 +.SH NAME +mailaddr \- mail addressing description +.SH DESCRIPTION +.nh +This manual page gives a brief introduction to SMTP mail addresses, as +used on the Internet. These addresses are in the general format +.PP + user@domain +.PP +where a domain is a hierarchical dot-separated list of subdomains. +These examples are valid forms of the same address: +.PP + eric@monet.berkeley.edu +.br + Eric Allman <eric@monet.berkeley.edu> +.br + eric@monet.berkeley.edu (Eric Allman) +.PP +The domain part ("monet.berkeley.edu") is a mail-accepting domain. It +can be a host and in the past it usually was, but it doesn't have to +be. The domain part is not case sensitive. +.PP +The local part ("eric") is often a user name, but its meaning is +defined by the local software. Sometimes it is case sensitive, +although that is unusual. If you see a local-part that looks like +garbage, it is usually because of a gateway between an internal e-mail +system and the net, here are some examples: +.PP + "surname/admd=telemail/c=us/o=hp/prmd=hp"@some.where +.br + USER%SOMETHING@some.where +.br + machine!machine!name@some.where +.br + I2461572@some.where +.PP +(These are, respectively, an X.400 gateway, a gateway to an arbitrary +internal mail system that lacks proper internet support, an UUCP +gateway, and the last one is just boring username policy.) +.PP +The real-name part ("Eric Allman") can either be placed before +<>, or in () at the end. (Strictly speaking the two aren't the same, +but the difference is beyond the scope of this page.) The name may +have to be quoted using "", e.g. if it contains ".": +.PP + "Eric P. Allman" <eric@monet.berkeley.edu> +.SS Abbreviation. +.PP +Many mail systems let users abbreviate the domain name. For instance, +users at berkeley.edu may get away with "eric@monet" to send mail to +Eric Allman. +.I "This behavior is deprecated." +Sometimes it works, but you should not depend on it. +.SS Route-addrs. +.PP +In the past, sometimes one had to route route a message through +several hosts to get it to its final destination. Addresses which +show these relays are termed "route-addrs". These use the syntax: +.PP + <@hosta,@hostb:user@hostc> +.PP +This specifies that the message should be sent to hosta, from there +to hostb, and finally to hostc. Many hosts disregard route-addrs +and send directly to hostc. +.PP +Route-addrs are very unusual now. They occur sometimes in old mail +archives. It is generally possible to ignore all but the "user@hostc" +part of the address to determine the actual address. +.SS Postmaster. +.PP +Every site is required to have a user or user alias designated +"postmaster" to which problems with the mail system may be +addressed. The "postmaster" address is not case sensitive. +.SH FILES +.I /etc/aliases +.br +.I ~/.forward +.SH "SEE ALSO" +.BR binmail (1), +.BR mail (1), +.BR mconnect (1), +.BR aliases (5), +.BR forward (5), +.BR sendmail (8), +.BR vrfy (8) + +RFC2822 (Internet Message Format) |