SaveFromLine

SaveFromLine

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Save Unix-style From lines

All versions

Many Unix MUAs, as well as some transmittal systems such as UUCP, require that a mail-message header begin with a line that begins with the five-character sequence " From ". All other header lines must adhere to the RFC2822 standard and be delimited with a colon :

 From [e-mail] Mon Jan 01 12:35:25 2001 Return-Path: <[e-mail]> Date: Mon, 01 Jan 2001 12:35:15 PDT From: [e-mail] (John Q Public) 

If you don't set the SaveFromLine option, the first line in the previous example is stripped out by sendmail . The SaveFromLine option prevents this because it tells sendmail to keep header lines that begin with the five characters " From ". But note that it also causes this header to no longer be recognized as a header.

The forms of the SaveFromLine option are as follows :

 O SaveFromLine=  bool    configuration file (V8.7 and later)  -OSaveFromLine=  bool    command line (V8.7 and later)  define(`confSAVE_FROM_LINES',  bool)    mc configuration (V8.7 and later)  -s   command-line shorthand (not recommended)  Of  bool    configuration file (deprecated)  -of  bool    command line (deprecated)  

The optional argument bool is of type Boolean . If bool is missing, this option becomes true (the " From " line is saved). If the entire option is missing, it defaults to false ( neither save the " From " line nor recognize it as a header).

The SaveFromLine option is not safe. If specified from the command line, it can cause sendmail to relinquish its special privileges.