module Mail

Mail Envelope

The Envelope class provides a field for the first line in an mbox file, that looks like “From mikel@test.lindsaar.net DATETIME”

This envelope class reads that line, and turns it into an Mail::Envelope#from and Mail::Envelope#date for your use.

encoding: utf-8

Comments Field

The Comments field inherits from UnstructuredField and handles the Comments: header field in the email.

Sending comments to a mail message will instantiate a Mail::Field object that has a CommentsField as its field type.

An email header can have as many comments fields as it wants. There is no upper limit, the comments field is also optional (that is, no comment is needed)

Examples:

mail = Mail.new
mail.comments = 'This is a comment'
mail.comments    #=> 'This is a comment'
mail[:comments]  #=> '#<Mail::Field:0x180e5e8 @field=#<Mail::CommentsField:0x180e1c4
mail['comments'] #=> '#<Mail::Field:0x180e5e8 @field=#<Mail::CommentsField:0x180e1c4
mail['comments'] #=> '#<Mail::Field:0x180e5e8 @field=#<Mail::CommentsField:0x180e1c4

mail.comments = "This is another comment"
mail[:comments].map { |c| c.to_s } 
#=> ['This is a comment', "This is another comment"]

keywords = “Keywords:” phrase *(“,” phrase) CRLF

trace = [return]

1*received

return = “Return-Path:” path CRLF

path = ([CFWS] “<” ([CFWS] / addr-spec) “>” [CFWS]) /

obs-path

received = “Received:” name-val-list “;” date-time CRLF

name-val-list = [CFWS] [name-val-pair *(CFWS name-val-pair)]

name-val-pair = item-name CFWS item-value

item-name = ALPHA *([“-”] (ALPHA / DIGIT))

item-value = 1*angle-addr / addr-spec /

atom / domain / msg-id

subject = “Subject:” unstructured CRLF

This is an almost cut and paste from ActiveSupport v3.0.6, copied in here so that Mail itself does not depend on ActiveSupport to avoid versioning conflicts

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/address_lists_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/content_disposition_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/content_location_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/content_transfer_encoding_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/content_type_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/date_time_machine.rb.rl”

line 10 “/Users/raindrift/workspace/mail/lib/mail/parsers/ragel/ruby/machines/envelope_from_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/message_ids_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/mime_version_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/phrase_lists_machine.rb.rl”

line 10 “/home/bpot/src/gh/bpot/mail/lib/mail/parsers/ragel/ruby/machines/received_machine.rb.rl”

Constants

RANDOM_TAG
RubyVer

Public Class Methods

all(*args, &block) click to toggle source

Receive all emails from the default retriever See Mail::Retriever for a complete documentation.

# File lib/mail/mail.rb, line 169
def self.all(*args, &block)
  retriever_method.all(*args, &block)
end
connection(&block) click to toggle source
# File lib/mail/mail.rb, line 189
def Mail.connection(&block)
  retriever_method.connection(&block)
end
defaults(&block) click to toggle source

Sets the default delivery method and retriever method for all new Mail objects. The ::delivery_method and ::retriever_method default to :smtp and :pop3, with defaults set.

So sending a new email, if you have an SMTP server running on localhost is as easy as:

Mail.deliver do
  to      'mikel@test.lindsaar.net'
  from    'bob@test.lindsaar.net'
  subject 'hi there!'
  body    'this is a body'
end

If you do not specify anything, you will get the following equivalent code set in every new mail object:

Mail.defaults do
  delivery_method :smtp, { :address              => "localhost",
                           :port                 => 25,
                           :domain               => 'localhost.localdomain',
                           :user_name            => nil,
                           :password             => nil,
                           :authentication       => nil,
                           :enable_starttls_auto => true  }

  retriever_method :pop3, { :address             => "localhost",
                            :port                => 995,
                            :user_name           => nil,
                            :password            => nil,
                            :enable_ssl          => true }
end

Mail.delivery_method.new  #=> Mail::SMTP instance
Mail.retriever_method.new #=> Mail::POP3 instance

Each mail object inherits the default set in ::delivery_method, however, on a per email basis, you can override the method:

mail.delivery_method :sendmail

Or you can override the method and pass in settings:

mail.delivery_method :sendmail, { :address => 'some.host' }

You can also just modify the settings:

mail.delivery_settings = { :address => 'some.host' }

The passed in hash is just merged against the defaults with merge! and the result assigned the mail object. So the above example will change only the :address value of the global smtp_settings to be 'some.host', keeping all other values

# File lib/mail/mail.rb, line 104
def self.defaults(&block)
  Configuration.instance.instance_eval(&block)
end
delete_all(*args, &block) click to toggle source

Delete all emails from the default retriever See Mail::Retriever for a complete documentation.

# File lib/mail/mail.rb, line 180
def self.delete_all(*args, &block)
  retriever_method.delete_all(*args, &block)
end
deliver(*args, &block) click to toggle source

Send an email using the default configuration. You do need to set a default configuration first before you use self.deliver, if you don't, an appropriate error will be raised telling you to.

If you do not specify a delivery type, SMTP will be used.

Mail.deliver do
 to 'mikel@test.lindsaar.net'
 from 'ada@test.lindsaar.net'
 subject 'This is a test email'
 body 'Not much to say here'
end

You can also do:

mail = Mail.read('email.eml')
mail.deliver!

And your email object will be created and sent.

# File lib/mail/mail.rb, line 137
def self.deliver(*args, &block)
  mail = self.new(args, &block)
  mail.deliver
  mail
end
delivery_method() click to toggle source

Returns the delivery method selected, defaults to an instance of Mail::SMTP

# File lib/mail/mail.rb, line 109
def self.delivery_method
  Configuration.instance.delivery_method
end
eager_autoload!() click to toggle source

This runs through the autoload list and explictly requires them for you. Useful when running mail in a threaded process.

Usage:

require 'mail'
Mail.eager_autoload!
# File lib/mail.rb, line 64
def self.eager_autoload!
  @@autoloads.each { |_,path| require(path) }
end
find(*args, &block) click to toggle source

Find emails from the default retriever See Mail::Retriever for a complete documentation.

# File lib/mail/mail.rb, line 145
def self.find(*args, &block)
  retriever_method.find(*args, &block)
end
find_and_delete(*args, &block) click to toggle source

Finds and then deletes retrieved emails from the default retriever See Mail::Retriever for a complete documentation.

# File lib/mail/mail.rb, line 151
def self.find_and_delete(*args, &block)
  retriever_method.find_and_delete(*args, &block)
end
first(*args, &block) click to toggle source

Receive the first email(s) from the default retriever See Mail::Retriever for a complete documentation.

# File lib/mail/mail.rb, line 157
def self.first(*args, &block)
  retriever_method.first(*args, &block)
end
inform_interceptors(mail) click to toggle source
# File lib/mail/mail.rb, line 239
def self.inform_interceptors(mail)
  @@delivery_interceptors.each do |interceptor|
    interceptor.delivering_email(mail)
  end
end
inform_observers(mail) click to toggle source
# File lib/mail/mail.rb, line 233
def self.inform_observers(mail)
  @@delivery_notification_observers.each do |observer|
    observer.delivered_email(mail)
  end
end
last(*args, &block) click to toggle source

Receive the first email(s) from the default retriever See Mail::Retriever for a complete documentation.

# File lib/mail/mail.rb, line 163
def self.last(*args, &block)
  retriever_method.last(*args, &block)
end
new(*args, &block) click to toggle source

Allows you to create a new Mail::Message object.

You can make an email via passing a string or passing a block.

For example, the following two examples will create the same email message:

Creating via a string:

string = "To: mikel@test.lindsaar.net\r\n"
string << "From: bob@test.lindsaar.net\r\n"
string << "Subject: This is an email\r\n"
string << "\r\n"
string << "This is the body"
Mail.new(string)

Or creating via a block:

message = Mail.new do
  to 'mikel@test.lindsaar.net'
  from 'bob@test.lindsaar.net'
  subject 'This is an email'
  body 'This is the body'
end

Or creating via a hash (or hash like object):

message = Mail.new({:to => 'mikel@test.lindsaar.net',
                    'from' => 'bob@test.lindsaar.net',
                    :subject => 'This is an email',
                    :body => 'This is the body' })

Note, the hash keys can be strings or symbols, the passed in object does not need to be a hash, it just needs to respond to :each_pair and yield each key value pair.

As a side note, you can also create a new email through creating a Mail::Message object directly and then passing in values via string, symbol or direct method calls. See Mail::Message for more information.

mail = Mail.new
mail.to = 'mikel@test.lindsaar.net'
mail[:from] = 'bob@test.lindsaar.net'
mail['subject'] = 'This is an email'
mail.body = 'This is the body'
# File lib/mail/mail.rb, line 48
def self.new(*args, &block)
  Message.new(args, &block)
end
read(filename) click to toggle source

Reads in an email message from a path and instantiates it as a new Mail::Message

# File lib/mail/mail.rb, line 174
def self.read(filename)
  self.new(File.open(filename, 'rb') { |f| f.read })
end
read_from_string(mail_as_string) click to toggle source

Instantiates a new Mail::Message using a string

# File lib/mail/mail.rb, line 185
def Mail.read_from_string(mail_as_string)
  Mail.new(mail_as_string)
end
register_autoload(name, path) click to toggle source
# File lib/mail.rb, line 52
def self.register_autoload(name, path)
  @@autoloads[name] = path
  autoload(name, path)
end
register_interceptor(interceptor) click to toggle source

You can register an object to be given every mail object that will be sent, before it is sent. So if you want to add special headers or modify any email that gets sent through the Mail library, you can do so.

Your object needs to respond to a single method delivering_email(mail) which receives the email that is about to be sent. Make your modifications directly to this object.

# File lib/mail/mail.rb, line 221
def self.register_interceptor(interceptor)
  unless @@delivery_interceptors.include?(interceptor)
    @@delivery_interceptors << interceptor
  end
end
register_observer(observer) click to toggle source

You can register an object to be informed of every email that is sent through this method.

Your object needs to respond to a single method delivered_email(mail) which receives the email that is sent.

# File lib/mail/mail.rb, line 202
def self.register_observer(observer)
  unless @@delivery_notification_observers.include?(observer)
    @@delivery_notification_observers << observer
  end
end
retriever_method() click to toggle source

Returns the retriever method selected, defaults to an instance of Mail::POP3

# File lib/mail/mail.rb, line 114
def self.retriever_method
  Configuration.instance.retriever_method
end
unregister_interceptor(interceptor) click to toggle source

Unregister the given interceptor, allowing mail to resume operations without it.

# File lib/mail/mail.rb, line 229
def self.unregister_interceptor(interceptor)
  @@delivery_interceptors.delete(interceptor)
end
unregister_observer(observer) click to toggle source

Unregister the given observer, allowing mail to resume operations without it.

# File lib/mail/mail.rb, line 210
def self.unregister_observer(observer)
  @@delivery_notification_observers.delete(observer)
end

Protected Class Methods

random_tag() click to toggle source
# File lib/mail/mail.rb, line 249
def self.random_tag
  t = Time.now
  sprintf(RANDOM_TAG,
          t.to_i, t.tv_usec,
          $$, Thread.current.object_id.abs, self.uniq, rand(255))
end

Private Class Methods

something_random() click to toggle source
# File lib/mail/mail.rb, line 258
def self.something_random
  (Thread.current.object_id * rand(255) / Time.now.to_f).to_s.slice(-3..-1).to_i
end
uniq() click to toggle source
# File lib/mail/mail.rb, line 262
def self.uniq
  @@uniq += 1
end