Mail Administration Guide
    
T
 
 -t argument (sendmail program) ( Index Term Link )
 
 -T argument (sendmail program) ( Index Term Link )
 
 T code (qf files) ( Index Term Link )
 
 $t macro (sendmail program) ( Index Term Link ) ( Index Term Link )
 
 table (aliases)
  See NIS+, aliases (mail_aliases table)
 
 TCP connections
  mailer description semantics and ( Index Term Link ) ( Index Term Link )
  SMTP over, sendmail program and ( Index Term Link )
 
 TCP/IP networks
  mail delivery agent for ( Index Term Link )
  sendmail program and ( Index Term Link )
 
 temporary file protection modes ( Index Term Link )
 
 temporary queue file mode ( Index Term Link )
 
 testing
  See also debugging; troubleshooting
  address-rewriting rules ( Index Term Link ) ( Index Term Link )
  aliases ( Index Term Link )
  connections to other systems ( Index Term Link ) ( Index Term Link )
  mail configuration ( Index Term Link )
  recipient verification ( Index Term Link ) ( Index Term Link )
  RHS for aliases ( Index Term Link )
  sendmail program ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
 
 time intervals ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  @:@ in alias database ( Index Term Link )
  mail delivery speed ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  message timeouts ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  queue interval ( Index Term Link ) ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  read timeouts ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  time syntax options ( Index Term Link )
 
 time zone, setting ( Index Term Link )
 
 To: header line ( Index Term Link ) ( Index Term Link )
 
 top-level domains ( Index Term Link )
 
 tracking messages ( Index Term Link ) ( Index Term Link )
 
 transport agents
  See also sendmail program
  defined ( Index Term Link )
 
 troubleshooting
  See also debugging; testing
  aliases ( Index Term Link )
  duplicate message copies ( Index Term Link )
  mail delivered to wrong address ( Index Term Link ) ( Index Term Link )
  MAILER-DAEMON messages and ( Index Term Link )
  mailstats program and ( Index Term Link )
  sendmail program ( Index Term Link )
  system log and ( Index Term Link )
  tracing message route ( Index Term Link ) ( Index Term Link )
  .forward files and ( Index Term Link ) ( Index Term Link )
  undelivered mail ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  verifying connections to other systems ( Index Term Link )
 
 trusted user definition (sendmail.cf file) ( Index Term Link )