| SYNOPSIS | 
#include <libmilter/mfapi.h>
sfsistat (*xxfi_header)(
	SMFICTX * ctx,
	char * headerf,
	char * headerv
);
Handle a message header. | 
|---|
| DESCRIPTION | 
| Called When | xxfi_header is called zero or more times between xxfi_envrcpt and xxfi_eoh, once per message header. |  
| Default Behavior | Do nothing; return SMFIS_CONTINUE. |  | 
|---|
| ARGUMENTS | 
    | Argument | Description | 
|---|
 | ctx | Opaque context structure. |  | headerf | Header field name. |  | headerv | Header field value.  The
  content of the header may include folded white space (i.e. multiple
  lines with following white space).  The trailing line terminator (CR/LF)
  is removed. |  | 
|---|
| NOTES | 
Later filters will see header changes/additions made by earlier ones.
For much more detail about header format, please see 
RFC 822
 |