Web design portfolio - Tuucp These names specify users who are allowed
Tuucp These names specify users who are allowed to use sendmail s -f flag to set a sender other than the user running the command. You probably won t want to specify any normal user accounts here. However, if you use a mailing list manager (see the next section) that lets you specify the sender of outgoing messages, you may want to include the line Tmajordomo. Otherwise, all outgoing mail to list recipients will contain the error X-Authentication-Warning: localhost: majordomo set sender to owner-bigmailinglist using -f in the message header. If you have a large number of trusted users, the file class t can be used to specify a file that contains the list of names. Format of headers You can change the format that mail headers use with sendmail in your /etc/sendmail.cf file. The following lines appear at the beginning of that section: ######################### # Format of headers # ######################### H?P?Return-Path: <$g> HReceived: $?sfrom $s $.$?_($?s$|from $.$_) $.$?{auth_type}(authenticated$?{auth_ssf} (${auth_ssf} bits)$.) $.by $j ($v/$Z)$?r with $r$. id $i$?{tls_version} (using ${tls_version} with cipher ${cipher} (${cipher_bits} bits) verified ${verify})$.$?u for $u; $|; $.$b H?D?Resent-Date: $a H?D?Date: $a H?F?Resent-From: $?x$x <$g>$|$g$. H?F?From: $?x$x <$g>$|$g$. H?x?Full-Name: $x # HPosted-Date: $a # H?l?Received-Date: $b H?M?Resent-Message-Id: <$t.$i@$j> H?M?Message-Id: <$t.$i@$j> These lines dictate the format of message headers. After the appropriate values are substituted into the preceding variables, this block of text becomes a qf file in /var/spool/mqueue. Rewriting rules The Rewriting Rules section of the sendmail.cf file contains a complex set of rules needed to handle your sendmail service. The rules cover such things as converting addresses and dealing with local hostnames. You should not change entries in this section arbitrarily. The start of the Rewriting Rules section contains a header that appears as follows: ###################################################################### ###################################################################### ##### ##### REWRITING RULES ##### ###################################################################### ###################################################################### Again, if you ever need to edit these lines, you deserve at least some degree of pity and sympathy from system administrators everywhere.
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