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Bryan Costales, Claus Assmann, George Jansen, Gregory Shapiro

"sendmail, 4th Edition"

com
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
890 | Chapter 23: The K (Database-Map) Configuration Command
Note that all escaped characters are de-escaped (have the backslash removed) during this
process.
When quotation marks and escaped characters need to be preserved in a key before it is
looked up, you can use the -q switchwithth e K configuration command. The -q switch
suppresses dequoting and de-escaping.
23.3.12 -S
Space replacement character V8.8 and later
The dequote type (?§23.7.5 on page 904) refuses to remove quotation marks if doing so will
result in an illegal address. For example, internal space characters are illegal in addresses:
"a b" becomes ?†’ "a b"
The -S switch causes all the quoted space characters to be changed into a character that
you specify just before the dequoting process:
Kdequote dequote -S+
Here, we specify that quoted strings will have quoted spaces converted into a plus sign
before dequoting. Therefore, the preceding conversion becomes the following:
"a b" becomes ?†’ a+b
As you will see in the reference sections at the end of this chapter, this -S database switch
can be used with a few other types as well.
23.3.13 -T
Suffix to append on temporary failure V8.10 and later
When a resource is temporarily unavailable, it would be handy if sendmail indicated that
unavailability when the database lookup fails.


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