Index

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# Index: U

u flag : 30.8. Alphabetized F= Flags
U flag : 30.8. Alphabetized F= Flags
U line (host status file) : B.1. Status file lines
$u macro
  6.3. The local Delivery Agent
  7.3. Predefined Macros
  31.10. Alphabetized Reference
$U macro : 31.10. Alphabetized Reference
u option : (see DefaultUser (u) option)
U option : (see UserDatabaseSpec (U) option)
-U switch : 36.7. Alphabetized Reference
U= equate
  30.3.1. Tuning Without an Appropriate Keyword
  30.4. The Equates
  30.8. Alphabetized F= Flags
UDB_DEFAULT_SPEC macro : 18.8. Alphabetized Reference
uid
  assume specified : 30.8. Alphabetized F= Flags
  running agent as : 30.4. The Equates
uname system call : 18.8. Alphabetized Reference
unavailable resource error : 36.5.9. EX_UNAVAILABLE A Resource
"Unbalanced" warning : 28.1.2. Rules Are Treated Like Addresses
undeliverable addresses
  in aliases : 4.1.4. Verify Mode (-bv)
undivert command (m4) : 19.1.4. m4 diversions
uniformity : 18.2. Vendor Versus Compiling
UNIX
  error numbers : B.1. Status file lines
  exit status : B.1. Status file lines
  mailbox file : 3.2.1. Delivery to a Mailbox
UnixFromLine option
  31.10. Alphabetized Reference
  34.8. Alphabetized Reference
"unknown control line" message : 5.1. Overview
"Unknown host status version" message : B.1. Status file lines
unknown local users : 31.10. Alphabetized Reference
"unknown mailer" error : 29.6. Rule Set 0
unpacking source code
  2.1. Get the Source
  18.3.1. What's Where in the Source
unqualified
  addresses : 16.5. Qualify All Addresses?
  names
    19.6. Alphabetized m4 Macros
    31.10. Alphabetized Reference
unquoted whitespace : 13.2.8. The Unquoted Space Replacement Character
UnsafeGroupWrites option : 34.8. Alphabetized Reference
updating aliases file : 4.1.3. Rebuild Aliases Mode (-bi)
upgrading sendmail : 18.2. Vendor Versus Compiling
use_ct_file feature : 19.6. Alphabetized m4 Macros
use_cw_file feature : 19.6. Alphabetized m4 Macros
UseErrorsTo (l) option : 34.8. Alphabetized Reference
User Database
  18.8. Alphabetized Reference
  33.5. The User Database
  33.8. Alphabetized Reference
  34.8. Alphabetized Reference
  rewrite : 30.8. Alphabetized F= Flags
user database class : 33.8. Alphabetized Reference
User Database key : 30.8. Alphabetized F= Flags
"User unknown" message : 4.2. Verbose (-v)
UserDatabaseSpec (U) option
  18.8. Alphabetized Reference
  34.8. Alphabetized Reference
userdb database class : 33.8. Alphabetized Reference
USERDB macro : 18.8. Alphabetized Reference
usernames
  capitalization : 30.8. Alphabetized F= Flags
  recipient's : (see $u macro)
users
  $: operator and
    9.2.3. The User ($:)
    9.3. Testing Rule Set 0
    29.6.1. Further Processing: $:user
    30.5.3. The $: Part
    33.4.1. Specify a Default with $:
  alias delivery to : 24.2.1. Delivery to Users
  default identities for
    13.2.5. The Default User Identities
    22.8.3.1. The DefaultUser option
    34.8. Alphabetized Reference
  .forward file : 22.5.3. Permissions for ~/.forward Files
  groups : 18.8. Alphabetized Reference
  including oneself on mailing lists : 34.8. Alphabetized Reference
  as LHS of alias : 30.8. Alphabetized F= Flags
  local : 31.10. Alphabetized Reference
    accepting mail from only : 20.2.1. Accept Mail Only From Our Domain
    delivery to
      3.2. Role in Local Delivery
      19.6. Alphabetized m4 Macros
      29.6.3. Delivering to Local Recipient
      30.8. Alphabetized F= Flags
  mailing list instructions for : 25.5.4. Users Ignore list-request
  marked with + : 24.4.3. Plussed Users
  passwords : (see passwd file)
  recipient of bounced mail : (see $n macro)
  running sendmail manually : 1.4. Run sendmail by Hand
  semiprivileged : 22.5. Permissions
  trusted
    14.6. Trusted User
    19.6. Alphabetized m4 Macros
    22.8.1. Trusted Users
    32.5. Alphabetized Reference
  trusted users : 5.3.10. Trusted Users
  unavailable : (see undeliverable addresses)
  verifying with SMTP : 22.3.2. SMTP vrfy and expn
USESETEUID macro : 18.8. Alphabetized Reference
/usr/tmp file : 18.8. Alphabetized Reference
usrerr() : 20.2.1. Accept Mail Only From Our Domain
UUCP
  3.3.2. UUCP
  8.1.4. UUCP and Host Paths
  19.6. Alphabetized m4 Macros
  addresses
    17.1.4. UUCP Addresses
    17.4. Rule Set 4
  eliminating support of : 19.6. Alphabetized m4 Macros
  $k macro : 31.10. Alphabetized Reference
  local handling of : 29.6.5. Handling UUCP Locally
  m4 configuration options : 19.4.6. UUCP
  macros for repays : 31.10. Alphabetized Reference
UUCP_RELAY macro (m4) : 19.6. Alphabetized m4 Macros
uucpdomain feature : 19.6. Alphabetized m4 Macros
UUCPSMTP macro (m4) : 19.6. Alphabetized m4 Macros
uuencode/uudecode utilities : 22.6. The Aliases File

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