Documentation / git-send-email.txton commit general improvements (43abf13)
   1git-send-email(1)
   2=================
   3
   4NAME
   5----
   6git-send-email - Send a collection of patches as emails
   7
   8
   9SYNOPSIS
  10--------
  11[verse]
  12'git send-email' [<options>] <file|directory|rev-list options>...
  13'git send-email' --dump-aliases
  14
  15
  16DESCRIPTION
  17-----------
  18Takes the patches given on the command line and emails them out.
  19Patches can be specified as files, directories (which will send all
  20files in the directory), or directly as a revision list.  In the
  21last case, any format accepted by linkgit:git-format-patch[1] can
  22be passed to git send-email.
  23
  24The header of the email is configurable via command-line options.  If not
  25specified on the command line, the user will be prompted with a ReadLine
  26enabled interface to provide the necessary information.
  27
  28There are two formats accepted for patch files:
  29
  301. mbox format files
  31+
  32This is what linkgit:git-format-patch[1] generates.  Most headers and MIME
  33formatting are ignored.
  34
  352. The original format used by Greg Kroah-Hartman's 'send_lots_of_email.pl'
  36   script
  37+
  38This format expects the first line of the file to contain the "Cc:" value
  39and the "Subject:" of the message as the second line.
  40
  41
  42OPTIONS
  43-------
  44
  45Composing
  46~~~~~~~~~
  47
  48--annotate::
  49        Review and edit each patch you're about to send. Default is the value
  50        of `sendemail.annotate`. See the CONFIGURATION section for
  51        `sendemail.multiEdit`.
  52
  53--bcc=<address>,...::
  54        Specify a "Bcc:" value for each email. Default is the value of
  55        `sendemail.bcc`.
  56+
  57This option may be specified multiple times.
  58
  59--cc=<address>,...::
  60        Specify a starting "Cc:" value for each email.
  61        Default is the value of `sendemail.cc`.
  62+
  63This option may be specified multiple times.
  64
  65--compose::
  66        Invoke a text editor (see GIT_EDITOR in linkgit:git-var[1])
  67        to edit an introductory message for the patch series.
  68+
  69When `--compose` is used, git send-email will use the From, Subject, and
  70In-Reply-To headers specified in the message. If the body of the message
  71(what you type after the headers and a blank line) only contains blank
  72(or Git: prefixed) lines, the summary won't be sent, but From, Subject,
  73and In-Reply-To headers will be used unless they are removed.
  74+
  75Missing From or In-Reply-To headers will be prompted for.
  76+
  77See the CONFIGURATION section for `sendemail.multiEdit`.
  78
  79--from=<address>::
  80        Specify the sender of the emails.  If not specified on the command line,
  81        the value of the `sendemail.from` configuration option is used.  If
  82        neither the command-line option nor `sendemail.from` are set, then the
  83        user will be prompted for the value.  The default for the prompt will be
  84        the value of GIT_AUTHOR_IDENT, or GIT_COMMITTER_IDENT if that is not
  85        set, as returned by "git var -l".
  86
  87--reply-to=<address>::
  88        Specify the address where replies from recipients should go to.
  89        Use this if replies to messages should go to another address than what
  90        is specified with the --from parameter.
  91
  92--in-reply-to=<identifier>::
  93        Make the first mail (or all the mails with `--no-thread`) appear as a
  94        reply to the given Message-Id, which avoids breaking threads to
  95        provide a new patch series.
  96        The second and subsequent emails will be sent as replies according to
  97        the `--[no-]chain-reply-to` setting.
  98+
  99So for example when `--thread` and `--no-chain-reply-to` are specified, the
 100second and subsequent patches will be replies to the first one like in the
 101illustration below where `[PATCH v2 0/3]` is in reply to `[PATCH 0/2]`:
 102+
 103  [PATCH 0/2] Here is what I did...
 104    [PATCH 1/2] Clean up and tests
 105    [PATCH 2/2] Implementation
 106    [PATCH v2 0/3] Here is a reroll
 107      [PATCH v2 1/3] Clean up
 108      [PATCH v2 2/3] New tests
 109      [PATCH v2 3/3] Implementation
 110+
 111Only necessary if --compose is also set.  If --compose
 112is not set, this will be prompted for.
 113
 114--subject=<string>::
 115        Specify the initial subject of the email thread.
 116        Only necessary if --compose is also set.  If --compose
 117        is not set, this will be prompted for.
 118
 119--to=<address>,...::
 120        Specify the primary recipient of the emails generated. Generally, this
 121        will be the upstream maintainer of the project involved. Default is the
 122        value of the `sendemail.to` configuration value; if that is unspecified,
 123        and --to-cmd is not specified, this will be prompted for.
 124+
 125This option may be specified multiple times.
 126
 127--8bit-encoding=<encoding>::
 128        When encountering a non-ASCII message or subject that does not
 129        declare its encoding, add headers/quoting to indicate it is
 130        encoded in <encoding>.  Default is the value of the
 131        'sendemail.assume8bitEncoding'; if that is unspecified, this
 132        will be prompted for if any non-ASCII files are encountered.
 133+
 134Note that no attempts whatsoever are made to validate the encoding.
 135
 136--compose-encoding=<encoding>::
 137        Specify encoding of compose message. Default is the value of the
 138        'sendemail.composeencoding'; if that is unspecified, UTF-8 is assumed.
 139
 140--transfer-encoding=(7bit|8bit|quoted-printable|base64|auto)::
 141        Specify the transfer encoding to be used to send the message over SMTP.
 142        7bit will fail upon encountering a non-ASCII message.  quoted-printable
 143        can be useful when the repository contains files that contain carriage
 144        returns, but makes the raw patch email file (as saved from a MUA) much
 145        harder to inspect manually.  base64 is even more fool proof, but also
 146        even more opaque.  auto will use 8bit when possible, and quoted-printable
 147        otherwise.
 148+
 149Default is the value of the `sendemail.transferEncoding` configuration
 150value; if that is unspecified, default to `auto`.
 151
 152--xmailer::
 153--no-xmailer::
 154        Add (or prevent adding) the "X-Mailer:" header.  By default,
 155        the header is added, but it can be turned off by setting the
 156        `sendemail.xmailer` configuration variable to `false`.
 157
 158Sending
 159~~~~~~~
 160
 161--envelope-sender=<address>::
 162        Specify the envelope sender used to send the emails.
 163        This is useful if your default address is not the address that is
 164        subscribed to a list. In order to use the 'From' address, set the
 165        value to "auto". If you use the sendmail binary, you must have
 166        suitable privileges for the -f parameter.  Default is the value of the
 167        `sendemail.envelopeSender` configuration variable; if that is
 168        unspecified, choosing the envelope sender is left to your MTA.
 169
 170--smtp-encryption=<encryption>::
 171        Specify the encryption to use, either 'ssl' or 'tls'.  Any other
 172        value reverts to plain SMTP.  Default is the value of
 173        `sendemail.smtpEncryption`.
 174
 175--smtp-domain=<FQDN>::
 176        Specifies the Fully Qualified Domain Name (FQDN) used in the
 177        HELO/EHLO command to the SMTP server.  Some servers require the
 178        FQDN to match your IP address.  If not set, git send-email attempts
 179        to determine your FQDN automatically.  Default is the value of
 180        `sendemail.smtpDomain`.
 181
 182--smtp-auth=<mechanisms>::
 183        Whitespace-separated list of allowed SMTP-AUTH mechanisms. This setting
 184        forces using only the listed mechanisms. Example:
 185+
 186------
 187$ git send-email --smtp-auth="PLAIN LOGIN GSSAPI" ...
 188------
 189+
 190If at least one of the specified mechanisms matches the ones advertised by the
 191SMTP server and if it is supported by the utilized SASL library, the mechanism
 192is used for authentication. If neither 'sendemail.smtpAuth' nor `--smtp-auth`
 193is specified, all mechanisms supported by the SASL library can be used. The
 194special value 'none' maybe specified to completely disable authentication
 195independently of `--smtp-user`
 196
 197--smtp-pass[=<password>]::
 198        Password for SMTP-AUTH. The argument is optional: If no
 199        argument is specified, then the empty string is used as
 200        the password. Default is the value of `sendemail.smtpPass`,
 201        however `--smtp-pass` always overrides this value.
 202+
 203Furthermore, passwords need not be specified in configuration files
 204or on the command line. If a username has been specified (with
 205`--smtp-user` or a `sendemail.smtpUser`), but no password has been
 206specified (with `--smtp-pass` or `sendemail.smtpPass`), then
 207a password is obtained using 'git-credential'.
 208
 209--no-smtp-auth::
 210        Disable SMTP authentication. Short hand for `--smtp-auth=none`
 211
 212--smtp-server=<host>::
 213        If set, specifies the outgoing SMTP server to use (e.g.
 214        `smtp.example.com` or a raw IP address).  Alternatively it can
 215        specify a full pathname of a sendmail-like program instead;
 216        the program must support the `-i` option.  Default value can
 217        be specified by the `sendemail.smtpServer` configuration
 218        option; the built-in default is to search for `sendmail` in
 219        `/usr/sbin`, `/usr/lib` and $PATH if such program is
 220        available, falling back to `localhost` otherwise.
 221
 222--smtp-server-port=<port>::
 223        Specifies a port different from the default port (SMTP
 224        servers typically listen to smtp port 25, but may also listen to
 225        submission port 587, or the common SSL smtp port 465);
 226        symbolic port names (e.g. "submission" instead of 587)
 227        are also accepted. The port can also be set with the
 228        `sendemail.smtpServerPort` configuration variable.
 229
 230--smtp-server-option=<option>::
 231        If set, specifies the outgoing SMTP server option to use.
 232        Default value can be specified by the `sendemail.smtpServerOption`
 233        configuration option.
 234+
 235The --smtp-server-option option must be repeated for each option you want
 236to pass to the server. Likewise, different lines in the configuration files
 237must be used for each option.
 238
 239--smtp-ssl::
 240        Legacy alias for '--smtp-encryption ssl'.
 241
 242--smtp-ssl-cert-path::
 243        Path to a store of trusted CA certificates for SMTP SSL/TLS
 244        certificate validation (either a directory that has been processed
 245        by 'c_rehash', or a single file containing one or more PEM format
 246        certificates concatenated together: see verify(1) -CAfile and
 247        -CApath for more information on these). Set it to an empty string
 248        to disable certificate verification. Defaults to the value of the
 249        `sendemail.smtpsslcertpath` configuration variable, if set, or the
 250        backing SSL library's compiled-in default otherwise (which should
 251        be the best choice on most platforms).
 252
 253--smtp-user=<user>::
 254        Username for SMTP-AUTH. Default is the value of `sendemail.smtpUser`;
 255        if a username is not specified (with `--smtp-user` or `sendemail.smtpUser`),
 256        then authentication is not attempted.
 257
 258--smtp-debug=0|1::
 259        Enable (1) or disable (0) debug output. If enabled, SMTP
 260        commands and replies will be printed. Useful to debug TLS
 261        connection and authentication problems.
 262
 263--batch-size=<num>::
 264        Some email servers (e.g. smtp.163.com) limit the number emails to be
 265        sent per session (connection) and this will lead to a failure when
 266        sending many messages.  With this option, send-email will disconnect after
 267        sending $<num> messages and wait for a few seconds (see --relogin-delay)
 268        and reconnect, to work around such a limit.  You may want to
 269        use some form of credential helper to avoid having to retype
 270        your password every time this happens.  Defaults to the
 271        `sendemail.smtpBatchSize` configuration variable.
 272
 273--relogin-delay=<int>::
 274        Waiting $<int> seconds before reconnecting to SMTP server. Used together
 275        with --batch-size option.  Defaults to the `sendemail.smtpReloginDelay`
 276        configuration variable.
 277
 278Automating
 279~~~~~~~~~~
 280
 281--no-[to|cc|bcc]::
 282        Clears any list of "To:", "Cc:", "Bcc:" addresses previously
 283        set via config.
 284
 285--no-identity::
 286        Clears the previously read value of `sendemail.identity` set
 287        via config, if any.
 288
 289--to-cmd=<command>::
 290        Specify a command to execute once per patch file which
 291        should generate patch file specific "To:" entries.
 292        Output of this command must be single email address per line.
 293        Default is the value of 'sendemail.tocmd' configuration value.
 294
 295--cc-cmd=<command>::
 296        Specify a command to execute once per patch file which
 297        should generate patch file specific "Cc:" entries.
 298        Output of this command must be single email address per line.
 299        Default is the value of `sendemail.ccCmd` configuration value.
 300
 301--[no-]chain-reply-to::
 302        If this is set, each email will be sent as a reply to the previous
 303        email sent.  If disabled with "--no-chain-reply-to", all emails after
 304        the first will be sent as replies to the first email sent.  When using
 305        this, it is recommended that the first file given be an overview of the
 306        entire patch series. Disabled by default, but the `sendemail.chainReplyTo`
 307        configuration variable can be used to enable it.
 308
 309--identity=<identity>::
 310        A configuration identity. When given, causes values in the
 311        'sendemail.<identity>' subsection to take precedence over
 312        values in the 'sendemail' section. The default identity is
 313        the value of `sendemail.identity`.
 314
 315--[no-]signed-off-by-cc::
 316        If this is set, add emails found in Signed-off-by: or Cc: lines to the
 317        cc list. Default is the value of `sendemail.signedoffbycc` configuration
 318        value; if that is unspecified, default to --signed-off-by-cc.
 319
 320--[no-]cc-cover::
 321        If this is set, emails found in Cc: headers in the first patch of
 322        the series (typically the cover letter) are added to the cc list
 323        for each email set. Default is the value of 'sendemail.cccover'
 324        configuration value; if that is unspecified, default to --no-cc-cover.
 325
 326--[no-]to-cover::
 327        If this is set, emails found in To: headers in the first patch of
 328        the series (typically the cover letter) are added to the to list
 329        for each email set. Default is the value of 'sendemail.tocover'
 330        configuration value; if that is unspecified, default to --no-to-cover.
 331
 332--suppress-cc=<category>::
 333        Specify an additional category of recipients to suppress the
 334        auto-cc of:
 335+
 336--
 337- 'author' will avoid including the patch author.
 338- 'self' will avoid including the sender.
 339- 'cc' will avoid including anyone mentioned in Cc lines in the patch header
 340  except for self (use 'self' for that).
 341- 'bodycc' will avoid including anyone mentioned in Cc lines in the
 342  patch body (commit message) except for self (use 'self' for that).
 343- 'sob' will avoid including anyone mentioned in Signed-off-by lines except
 344  for self (use 'self' for that).
 345- 'misc-by' will avoid including anyone mentioned in Acked-by,
 346  Reviewed-by, Tested-by and other "-by" lines in the patch body,
 347  except Signed-off-by (use 'sob' for that).
 348- 'cccmd' will avoid running the --cc-cmd.
 349- 'body' is equivalent to 'sob' + 'bodycc' + 'misc-by'.
 350- 'all' will suppress all auto cc values.
 351--
 352+
 353Default is the value of `sendemail.suppresscc` configuration value; if
 354that is unspecified, default to 'self' if --suppress-from is
 355specified, as well as 'body' if --no-signed-off-cc is specified.
 356
 357--[no-]suppress-from::
 358        If this is set, do not add the From: address to the cc: list.
 359        Default is the value of `sendemail.suppressFrom` configuration
 360        value; if that is unspecified, default to --no-suppress-from.
 361
 362--[no-]thread::
 363        If this is set, the In-Reply-To and References headers will be
 364        added to each email sent.  Whether each mail refers to the
 365        previous email (`deep` threading per 'git format-patch'
 366        wording) or to the first email (`shallow` threading) is
 367        governed by "--[no-]chain-reply-to".
 368+
 369If disabled with "--no-thread", those headers will not be added
 370(unless specified with --in-reply-to).  Default is the value of the
 371`sendemail.thread` configuration value; if that is unspecified,
 372default to --thread.
 373+
 374It is up to the user to ensure that no In-Reply-To header already
 375exists when 'git send-email' is asked to add it (especially note that
 376'git format-patch' can be configured to do the threading itself).
 377Failure to do so may not produce the expected result in the
 378recipient's MUA.
 379
 380
 381Administering
 382~~~~~~~~~~~~~
 383
 384--confirm=<mode>::
 385        Confirm just before sending:
 386+
 387--
 388- 'always' will always confirm before sending
 389- 'never' will never confirm before sending
 390- 'cc' will confirm before sending when send-email has automatically
 391  added addresses from the patch to the Cc list
 392- 'compose' will confirm before sending the first message when using --compose.
 393- 'auto' is equivalent to 'cc' + 'compose'
 394--
 395+
 396Default is the value of `sendemail.confirm` configuration value; if that
 397is unspecified, default to 'auto' unless any of the suppress options
 398have been specified, in which case default to 'compose'.
 399
 400--dry-run::
 401        Do everything except actually send the emails.
 402
 403--[no-]format-patch::
 404        When an argument may be understood either as a reference or as a file name,
 405        choose to understand it as a format-patch argument (`--format-patch`)
 406        or as a file name (`--no-format-patch`). By default, when such a conflict
 407        occurs, git send-email will fail.
 408
 409--quiet::
 410        Make git-send-email less verbose.  One line per email should be
 411        all that is output.
 412
 413--[no-]validate::
 414        Perform sanity checks on patches.
 415        Currently, validation means the following:
 416+
 417--
 418                *       Invoke the sendemail-validate hook if present (see linkgit:githooks[5]).
 419                *       Warn of patches that contain lines longer than
 420                        998 characters unless a suitable transfer encoding
 421                        ('auto', 'base64', or 'quoted-printable') is used;
 422                        this is due to SMTP limits as described by
 423                        http://www.ietf.org/rfc/rfc5322.txt.
 424--
 425+
 426Default is the value of `sendemail.validate`; if this is not set,
 427default to `--validate`.
 428
 429--force::
 430        Send emails even if safety checks would prevent it.
 431
 432
 433Information
 434~~~~~~~~~~~
 435
 436--dump-aliases::
 437        Instead of the normal operation, dump the shorthand alias names from
 438        the configured alias file(s), one per line in alphabetical order. Note,
 439        this only includes the alias name and not its expanded email addresses.
 440        See 'sendemail.aliasesfile' for more information about aliases.
 441
 442
 443CONFIGURATION
 444-------------
 445
 446sendemail.aliasesFile::
 447        To avoid typing long email addresses, point this to one or more
 448        email aliases files.  You must also supply `sendemail.aliasFileType`.
 449
 450sendemail.aliasFileType::
 451        Format of the file(s) specified in sendemail.aliasesFile. Must be
 452        one of 'mutt', 'mailrc', 'pine', 'elm', or 'gnus', or 'sendmail'.
 453+
 454What an alias file in each format looks like can be found in
 455the documentation of the email program of the same name. The
 456differences and limitations from the standard formats are
 457described below:
 458+
 459--
 460sendmail;;
 461*       Quoted aliases and quoted addresses are not supported: lines that
 462        contain a `"` symbol are ignored.
 463*       Redirection to a file (`/path/name`) or pipe (`|command`) is not
 464        supported.
 465*       File inclusion (`:include: /path/name`) is not supported.
 466*       Warnings are printed on the standard error output for any
 467        explicitly unsupported constructs, and any other lines that are not
 468        recognized by the parser.
 469--
 470
 471sendemail.multiEdit::
 472        If true (default), a single editor instance will be spawned to edit
 473        files you have to edit (patches when `--annotate` is used, and the
 474        summary when `--compose` is used). If false, files will be edited one
 475        after the other, spawning a new editor each time.
 476
 477sendemail.confirm::
 478        Sets the default for whether to confirm before sending. Must be
 479        one of 'always', 'never', 'cc', 'compose', or 'auto'. See `--confirm`
 480        in the previous section for the meaning of these values.
 481
 482EXAMPLES
 483--------
 484Use gmail as the smtp server
 485~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 486To use 'git send-email' to send your patches through the GMail SMTP server,
 487edit ~/.gitconfig to specify your account settings:
 488
 489        [sendemail]
 490                smtpEncryption = tls
 491                smtpServer = smtp.gmail.com
 492                smtpUser = yourname@gmail.com
 493                smtpServerPort = 587
 494
 495If you have multifactor authentication setup on your gmail account, you will
 496need to generate an app-specific password for use with 'git send-email'. Visit
 497https://security.google.com/settings/security/apppasswords to create it.
 498
 499Once your commits are ready to be sent to the mailing list, run the
 500following commands:
 501
 502        $ git format-patch --cover-letter -M origin/master -o outgoing/
 503        $ edit outgoing/0000-*
 504        $ git send-email outgoing/*
 505
 506The first time you run it, you will be prompted for your credentials.  Enter the
 507app-specific or your regular password as appropriate.  If you have credential
 508helper configured (see linkgit:git-credential[1]), the password will be saved in
 509the credential store so you won't have to type it the next time.
 510
 511Note: the following core Perl modules that may be installed with your
 512distribution of Perl are required:
 513MIME::Base64, MIME::QuotedPrint, Net::Domain and Net::SMTP.
 514These additional Perl modules are also required:
 515Authen::SASL and Mail::Address.
 516
 517
 518SEE ALSO
 519--------
 520linkgit:git-format-patch[1], linkgit:git-imap-send[1], mbox(5)
 521
 522GIT
 523---
 524Part of the linkgit:git[1] suite