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''-o'' '''

-o
Set a single-character option All versions

The -o command-line switch is used to set a single-character configuration option from the command line: 

-oXvalue

The -o switch is described in detail in Section 24.2.



    		Preface
    		Chapter 1. Some Basics
    		Part I: Build and Install
    		Part II: Administration
    		Chapter 6. Tune Performance
    		Chapter 7. How to Handle spam
    		Chapter 8. Test Rule Sets with -bt
    		Chapter 9. DNS and sendmail
    		Chapter 10. Maintain Security with sendmail
    		Chapter 11. Manage the Queue
    		Chapter 12. Maintain Aliases
    		Chapter 13. Mailing Lists and ~/.forward
    		Chapter 14. Signals, Transactions, and Syslog
    		Chapter 15. The sendmail Command Line
    		15.1 Alternative argv[0] Names
    		15.2 Command-Line Switches
    		15.3 List of Recipient Addresses
    		15.4 Processing the Command Line
    		15.5 sendmail's exit( ) Status
    		''EX_CANTCREAT'' '''
    		''EX_CONFIG'' '''
    		''EX_IOERR'' '''
    		''EX_OK'' '''
    		''EX_OSERR'' '''
    		''EX_OSFILE'' '''
    		''EX_SOFTWARE'' '''
    		''EX_TEMPFAIL'' '''
    		''EX_UNAVAILABLE'' '''
    		''EX_USAGE'' '''
    		15.6 Pitfalls
    		15.7 Alphabetized Command-Line Switches
    		''-A'' '''
    		''-B'' '''
    		''-b'' '''
    		''-ba'' '''
    		''-bD'' '''
    		''-bd'' '''
    		''-bH'' '''
    		''-bh'' '''
    		''-bi'' '''
    		''-bm'' '''
    		''-bP'' '''
    		''-bp'' '''
    		''-bs'' '''
    		''-bt'' '''
    		''-bv'' '''
    		''-bz'' '''
    		''-C'' '''
    		''-c'' '''
    		''-d'' '''
    		''-E'' '''
    		''-e'' '''
    		''-F'' '''
    		''-f'' '''
    		''-G'' '''
    		''-h'' '''
    		''-I'' '''
    		''-i'' '''
    		''-J'' '''
    		''-L'' '''
    		''-M'' '''
    		''-m'' '''
    		''-N'' '''
    		''-n'' '''
    		''-O'' '''
    		''-o'' '''
    		''-p'' '''
    		''-q'' '''
    		''-R'' '''
    		''-r'' '''
    		''-s'' '''
    		''-T'' '''
    		''-t'' '''
    		''-U'' '''
    		''-V'' '''
    		''-v'' '''
    		''-X'' '''
    		''-x'' '''
    		Chapter 16. Debug sendmail with -d
    		Part III: The Configuration File
    		Part IV: Appendixes
    		Bibliography