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* When the argument to an m4 define command contains one or more commas, that argument should be
enclosed in two single quotes.
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24.9 Alphabetized Options | 987
To handle this situation, V8.7 sendmail introduced the ColonOkInAddr option. It is used like
this:
O ColonOkInAddr=bool ?†? configuration file (V8.7 and later)
-OColonOkInAddr=bool ?†? command line (V8.7 and later)
define(`confCOLON_OK_IN_ADDR??,bool) ?†? mc configuration (V8.7 and later)
The argument bool is of type Boolean. If it is absent, this option is true (colons are OK, so
list syntax is not recognized). If this option is entirely omitted or if bool is false, colons are
not OK, so list syntax is recognized. Note that for version 5 or earlier configuration files
(see ?§16.5 on page 580 for a description of the V configuration command), this option is
automatically set to true. Also note that for mc configurations, this option is absent (false)
by default.
Note that DECnet-style addresses (?§19.3.4 on page 693) legitimately contain double colons
(e.g., host::user). DECnet addresses are correctly recognized regardless of how this
ColonOkInAddr option is set.
The ColonOkInAddr option is safe. If it is specified from the command line, sendmail will not
relinquish its special privileges.
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