23.3 The K Command switches | sendmail, 4th Edition

The switches must follow the type and precede the file_or_map :

 K  name type switches file_or_map

If any switches follow file_or_map , they will be silently ignored. ^[3] All switches begin with a - character and are listed in Table 23-3. Note that some database-map types utilize only a small subset of all switches (e.g., dequote uses only -a , -D , -s , and -S , and sequence doesn't use any).

^[3] This is true as of V8.12. Future versions might change the semantics of the K line such that switches can follow.

Table 23-3. K command switches

Switch	§	Description
`-1`	See this section	Consider successful only if exactly one key is matched ( `ldap` only)
`-A`	-A	Append values for duplicate keys
`-a`	-a	Append tag on successful match
`-b`	See this section	Base from which to begin the search ( `ldap` only)
`-b`	See this section	Use basic, not extended, regular expression matching ( `regex` only)
`-D`	-D	Don't use this database map if `DeliveryMode= defer`
`-d`	See this section	DN to bind to server as ( `ldap` only)
`-d`	See this section	The delimiting string ( `regex` only)
`-d`	See this section	The res_search ( ) `_res. retry` interval ( `dns` and `host` only)
`-f`	-f	Preserve case
`-h`	See this section	Hosts that serve this network database ( `ldap` only)
`-h`	See this section	Hosts that serve this network database ( `ph` only)
`-k`	-k	Specify column for key
`-k`	See this section	The search query ( `ldap` only)
`-k`	netinfo	The property that is searched ( `netinfo` only)
`-k`	See this section	Specify a list of fields to query ( `ph` only)
`-L`	syslog	The logging level at which to log ( `syslog` only)
`-l`	-l (lowercase L)	Time limit to timeout connection ( `ldap` and `ph` only)
`-M`	See this section	The method to use for binding ( `ldap` only)
`-m`	-m	Suppress replacement on match
`-N`	-N	Append a null byte to all keys
`-n`	See this section	Retrieve attribute names only, not values ( `ldap` only)
`-n`	See this section	NOT, that is, invert the test ( `regex` only)
`-O`	-O	Never add a null byte
`-o`	-o	The database map is optional
`-P`	See this section	The secret password to use for binding ( `ldap` only)
`-p`	See this section	Port to use when connecting to host ( `ldap` only)
`-q`	-q	Don't strip quotes from key
`-R`	See this section	Don't auto-chase referrals ( `ldap` only)
`-R`	dns	Record type to look up ( `dns` only)
`-r`	See this section	Allow dereferencing of aliases ( `ldap` only)
`-r`	See this section	The res_search ( ) `_res.retries` limit ( `dns` and `host` only)
`-S`	-S	Space replacement character for database map
`-s`	See this section	Search scope of "base," "one," or "sub" ( `ldap` only)
`-s`	See this section	Substring to match and return ( `regex` only)
`-T`	-T	Suffix to append on temporary failure
`-t`	-t	Ignore temporary errors
`-V`	See this section	Specify return attribute list separator ( `ldap` only)
`-v`	-v	Specify the value's column
`-v`	netinfo	The property to return ( `netinfo` only)
`-v`	ph	Specify a list of fields to return ( `ph` only, deprecated)
`-v`	See this section	Specify the list of attributes to return ( `ldap` only)
	See this section	Limit the number of matches to return ( `ldap` only)
`-z`	-z	Specify the column delimiter

If a switch other than those listed is specified, that switch is either silently ignored or an error reports , depending on the version of sendmail and the particular type .

In the sections that follow, we document the switches that are common to a number of database-map types. Those that are unique, or unique in meaning, to a particular database-map type are listed with the type.