C

C=

Default MIME character set V8.7 and above

The C= delivery agent equate (introduced with V8.7 sendmail ) is used to define a default character set for use with the MIME Content-Type : header (Content-Type:). If it is present, its value supersedes that of the DefaultCharSet option (DefaultCharSet).

Note that the C= delivery agent equate is examined only when the delivery agent is selected for an envelope sender address.

When a mail message is converted from 8 to 7 bits (see the EightBitMode option in EightBitMode), it is important that the result looks like a MIME message. V8.7 sendmail first outputs the following header (if one is not already present):

 MIME-Version: 1.0 

Next, V8.7 sendmail looks for a Content-Type : header (Content-Type:). If none is found, the following is inserted, where charset is the value declared for the C= delivery agent equate of the sender's delivery agent:

 Content-Type: text/plain; charset=  charset  

If the argument to C= is missing, the following error is printed and C= becomes undefined:

 mailer  agent_name  : null charset 

If the C= delivery agent equate is undefined in your configuration file, charset defaults to the value of the DefaultCharSet option. If both are undefined, the value for charset becomes unknown-8bit .



Sendmail
sendmail, 4th Edition
ISBN: 0596510292
EAN: 2147483647
Year: 2002
Pages: 1174

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