imsimta chbuild [-image_file=file_spec | -noimage_file] 
[-maximum | -nomaximum][-option_file=[option_file]
 | -nooption_file] [-remove] [-sizes |-nosizes] [-statistics | 
-nostatistics]

-image_file=file_spec | -noimage_file

By default, imsimta chbuild creates as output the image file named by the IMTA_CHARSET_DATA option of the MTA tailor file, msg-svr-base/config/imta_tailor. With the -image_file option, an alternate file name may be specified. When the -noimage_file option is specified, imsimta chbuild does not produce an output image file. The -noimage_file option is used in conjunction with the -option_file option to produce as output an option file that specifies table sizes adequate to hold the tables required by the processed input files.

-maximum | -nomaximum

The file msg-svr-base/config/maximum_charset.dat is read in addition to the file named by the IMTA_CHARSET_OPTION_FILE option of the MTA tailor file, msg-svr-base/config/imta_tailor, when -maximum is specified. This file specifies near -maximum table sizes but does not change any other settings. Use this option only if the current table sizes are inadequate. The -noimage and -option_file options should always be used in conjunction with this option—it makes no sense to output the enormous configuration that is produced by -maximum, but it does make sense to use -maximum to get past size restrictions in order to build a properly sized option file for use in building a manageable configuration with a subsequent imsimta chbuild invocation.

-option_file=[option_file] | -nooption_file

imsimta chbuild can produce an option file that contains the correct table sizes to hold the conversion tables that were just processed (plus a little room for growth). The -option_file option causes this file to be output. By default, this file is the file named by the IMTA_CHARSET_OPTION_FILE option of the MTA tailor file, msg-svr-base/config/imta_tailor. The value of the -option_file option may be used to specify an alternate file name. If the -nooption_file option is given, then no option file is output. imsimta chbuild always reads any option file (for example, the file named by the IMTA_OPTION_FILE option of the MTA tailor file) that is already present; use of this option does not alter this behavior. However, use of the -maximum option causes imsimta chbuild to read options from maximum_charset.dat in addition to IMTA_CHARSET_OPTION_FILE. This file specifies near-maximum table sizes. Use this option only if the current table sizes are inadequate, and only use it to create a new option file. The -noimage_file option should always be specified with -maximum, since a maximum-size image would be enormous and inefficient.

-remove

Removes any existing compiled character set conversion table. This is the file named by the IMTA_CHARSET_DATA option of the MTA tailor file, msg-svr-base/config/imta_tailor.

-sizes | -nosizes

The -sizes option instructs imsimta chbuild to output or suppress information on the sizes of the uncompiled conversion tables. The -nosizes option is the default.

-statistics | -nostatistics

The -statistics option instructs imsimta chbuild to output or suppress information on the compiled conversion tables. This information gives a rough measurement of the efficiency of the compilation, and may indicate whether or not an additional rebuild with the -option_file option is needed. The -nostatistics option is the default.

imsimta chbuild