[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] R class  R configuration command  2nd  3rd  4th  r delivery agent flag  2nd  R delivery agent flag  R line (qf file)  r line (qf file)  R line (qf file)  R= delivery agent equate  r= delivery agent equate  R= equate  r= queue-group equate  R= queue-group equate  rbl feature  RCPT command (SMTP)  2nd  3rd  README, top-level file  rebuild aliases mode  rebuilding  [See building] Received: header line  2nd  Recent-headerlines  recipient list buffer size  recipients     address of  2nd          adding domain to          host part of  [See $h macro]         vs. sender's address      check_rcpt rule set      delivery agent as      filtering with shell script      getting from header      headers for      home directory of      Local_check_rcpt rule set      logging  2nd      maximum number of      missing      multiple      processing list of  2nd      R= delivery agent equate and      selecting MDA for  [See parse rule set]     user name of  recnews program  recursion  recursive macro expansion  redirect feature  redirecting mail messages  [See aliases/aliasing] Reference: header line  regex type  REJECT value (access database)      rejection message for  reject= equate (syslog output)  rejecting mail messages  relay delivery agent  RELAY value (access database)  relay= equate (syslog output)  relay_based_on_MX feature  RELAY_DOMAIN mc macro  RELAY_DOMAIN_FILE mc macro  relay_entire_domain feature  relay_hosts_only feature  relay_local_from feature  relay_mail_from feature  relaying  relays      preferred delivery agent and      smart hosts and  2nd  RELEASE_NOTES file  remote host's name  Reply-To: header line  2nd  Requests for Comments  [See RFCs] REQUIRES_DIR_FSYNC compile-time macro  RES_DNSRCH  res_search( ) routine  Resent- headers  reserved TCP port  2nd  resolver library  ResolverOptions (I) option  resource unavailable error message  resources for further reading  2nd  restart signal  restarting sendmail daemon  retired accounts  RetryFactor option  Return-Path: header line  2nd  Return-Receipt-To: header line  2nd  rewriting addresses  2nd  RFCs (Requests for Comments)     RFC1413      RFC2554      RFC2822  2nd      RFC821  2nd      RFC822      RFC974  Rickert, Neil  rmail program  root user  2nd      safe options and      SUID_ROOT_FILES_OK compile-time macro and  Roth, Mark  2nd  route addressing  2nd      F=d delivery agent flag and  rule set 1  rule set 2  rule set names, macros in  rule sets  2nd  3rd  4th  5th      checking headers with      debug_dumpstate      headers, screening with      m4 preprocessor and      mailertables and      mc keywords for      testing with -bt switch      troubleshooting  rule-testing mode      debugging and  rules     for address transformation      mc keywords for      operators for      relays and      show      troubleshooting  ruleset= equate (syslog output)  RunAsUser option