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Mail Administration Guide
    
H
 
 -h argument (sendmail program) ( Index Term Link )
 
 H code (qf files) ( Index Term Link )
 
 -h flag (mailer description) ( Index Term Link )
 
 $h macro (sendmail program) ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
 
 hardware components ( Index Term Link ) ( Index Term Link )
 
 headers
  Bcc: line ( Index Term Link )
  Cc: line ( Index Term Link ) ( Index Term Link )
  Date: line ( Index Term Link ) ( Index Term Link )
  defining in sendmail.cf file ( Index Term Link )
  Errors-To: line ( Index Term Link )
  From: line ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  Full-Name: line ( Index Term Link ) ( Index Term Link )
  Message-Id: line ( Index Term Link ) ( Index Term Link )
  old format ( Index Term Link )
  queue files ( Index Term Link )
  Return-Path: line ( Index Term Link )
  sendmail program and ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  smartuucp ( Index Term Link )
  SMTP ( Index Term Link )
  To: line ( Index Term Link ) ( Index Term Link )
  tracing message route via ( Index Term Link )
  UNIX-style From lines ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  uucp ( Index Term Link )
  X-Authentication-Warning: line ( Index Term Link )
 
 help file, SMTP ( Index Term Link ) ( Index Term Link )
 
 hidden dot algorithm ( Index Term Link )
 
 hop count ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
 
 hosts
  See mail hosts
 
 hosts.byname map (NIS) ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
 
 hosts file
  See /etc/hosts file
 
 hyphen (-)
  See dash (-)