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MAILADDR(7) | Linux User's Manual | MAILADDR(7) |
NAME¶
mailaddr - mail addressing descriptionDESCRIPTION¶
This manual page gives a brief introduction to SMTP mail addresses, as used on the Internet. These addresses are in the general format user@domain where a domain is a hierarchical dot-separated list of subdomains. These examples are valid forms of the same address: eric@monet.berkeley.edueric@monet.berkeley.edu (Eric Allman) 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. The local part ("eric") is often a username, 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: "surname/admd=telemail/c=us/o=hp/prmd=hp"@some.where
Abbreviation.¶
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. This behavior is deprecated. Sometimes it works, but you should not depend on it.Route-addrs.¶
In the past, sometimes one had to 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: <@hosta,@hostb:user@hostc> 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. 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.Postmaster.¶
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.FILES¶
/etc/aliasesSEE ALSO¶
binmail(1), mail(1), mconnect(1), aliases(5), forward(5), sendmail(8), vrfy(8) RFC 2822 (Internet Message Format)COLOPHON¶
This page is part of release 3.74 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.2004-09-15 | 4.2 Berkeley Distribution |