Sendmail: Theory and Practice, Second Edition
A comprehensive guide to the nooks and crannies of Sendmail, the most-popular electronic mail utility for those using Unix-based servers.
TABLE OF CONTENTS Sendmail: Theory and Practice, Second Edition
Appendix B: Configuration Options
Configuration options [1], as we have seen, may be set from the command line using the -o argument flag or in the sendmail.cf file. Usually, a Sendmail option cannot be set by anyone but a trusted user. Options are represented by full words; some are also representable as single characters for back compatibility. The syntax of this line is:
<b class="bold">O</b> <i class="emphasis">option</i>=<i class="emphasis">value</i>
This sets option option to be value. Note that there must be a space between the letter 'O' and the name of the option. An older version is:
<b class="bold">O</b><i class="emphasis">o value</i>
where the option o is a single character. Depending on the option, value may be a string, an integer, a boolean (with legal values t, T, f, or F; the default is TRUE), or a time interval.
The options supported (with the old, one character names in brackets) are:
| AliasFile= spec, spec, | |
| [A] Specify possible alias file(s). Each spec should be in the format " class : info" where class : is optional and defaults to "implicit". Depending on how Sendmail is compiled, valid classes are implicit (search through a compiled-in list of alias file types, for back compatibility), hash (if NEWDB is specified), btree (if NEWDB is specified), dbm (if NDBM is specified), stab (internal symbol table not normally used unless you... |
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