''$={checkMIMEFieldHeaders}'' '''


MIME headers for maximum parameter length checking V8.10 and above

Beginning with V8.10 sendmail, the MaxMimeHeaderLength option (MaxMimeHeaderLength) can be used to define the maximum length for the parameters that some MIME headers take. A parameter is separated from the main header name and value by a semicolon:

name: value  ;  parameter  ; parameter  ...

Before checking that parameter's length, sendmail looks to see if the header name is in the class $={checkMIMEFieldHeaders}. If it isn't, sendmail skips the parameter length check.

When V8.10 sendmail starts up, it predefines the $={checkMIMEFieldHeaders} class to contain two MIME headers: the Content-Disposition: header (Content-Disposition:); and the Content-Type: header (Content-Type:). You can add more headers with the C or F configuration file commands.

If any of these parameters are found to be too long, they are truncated to the limit imposed by the MaxMimeHeaderLength option (MaxMimeHeaderLength).

    Part I: Build and Install
    Part II: Administration
    Part III: The Configuration File
    Chapter 21. The D (Define a Macro) Configuration Command
    Chapter 24. The O (Options) Configuration Command