Class TMail::Mail
In: lib/action_mailer/vendor/tmail-1.2.3/tmail/quoting.rb
lib/action_mailer/vendor/tmail-1.2.3/tmail/mail.rb
lib/action_mailer/vendor/tmail-1.2.3/tmail/attachments.rb
lib/action_mailer/vendor/tmail-1.2.3/tmail/net.rb
lib/action_mailer/vendor/tmail-1.2.3/tmail/interface.rb
Parent: Object

Mail Class

Accessing a TMail object done via the TMail::Mail class. As email can be fairly complex creatures, you will find a large amount of accessor and setter methods in this class!

Most of the below methods handle the header, in fact, what TMail does best is handle the header of the email object. There are only a few methods that deal directly with the body of the email, such as base64_encode and base64_decode.

Using TMail inside your code

The usual way is to install the gem (see the {README}[README] on how to do this) and then put at the top of your class:

 require 'tmail'

You can then create a new TMail object in your code with:

 @email = TMail::Mail.new

Or if you have an email as a string, you can initialize a new TMail::Mail object and get it to parse that string for you like so:

 @email = TMail::Mail.parse(email_text)

You can also read a single email off the disk, for example:

 @email = TMail::Mail.load('filename.txt')

Also, you can read a mailbox (usual unix mbox format) and end up with an array of TMail objects by doing something like this:

 # Note, we pass true as the last variable to open the mailbox read only
 mailbox = TMail::UNIXMbox.new("mailbox", nil, true)
 @emails = []
 mailbox.each_port { |m| @emails << TMail::Mail.new(m) }

Methods

[]   []=   accept   add_date   add_message_id   attachment?   attachments   base64_decode   base64_decode!   base64_encode   base64_encode!   bcc   bcc=   bcc_addrs   bcc_addrs=   body   body=   body_port   cc   cc=   cc_addrs   cc_addrs=   charset   charset=   clear   content_disposition   content_disposition=   content_transfer_encoding   content_transfer_encoding=   content_type   content_type=   content_type_is_text?   create_forward   create_reply   date   date=   delete   delete_if   delete_no_send_fields   destinations   disposition   disposition=   disposition_is_attachment?   disposition_param   each   each_dest   each_destination   each_field   each_header   each_header_name   each_key   each_pair   each_part   each_value   encoding   encoding=   epilogue   epilogue=   error_reply_addresses   fetch   friendly_from   from   from=   from_addrs   from_addrs=   has_attachments?   header   header_string   in_reply_to   in_reply_to=   indexes   indices   inspect   key?   keys   load   main_type   message_id   message_id=   mime_encode   mime_encode_binary   mime_encode_multipart   mime_encode_singlepart   mime_encode_text   mime_version   mime_version=   multipart?   ordered_each   parse   parts   preamble   preamble=   quoted_body   quoted_body=   quoted_subject   ready_to_send   references   references=   reply_addresses   reply_to   reply_to=   reply_to_addrs   reply_to_addrs=   send_text_to   send_to   send_to_0   sender   sender=   sender_addr   sender_addr=   set_content_disposition   set_content_type   set_disposition   store   strftime   sub_header   sub_type   subject   subject   subject=   to   to=   to_addrs   to_addrs=   transfer_encoding   transfer_encoding=   type_param   unquoted_body   values_at   write_back  

Included Modules

StrategyInterface

Constants

ALLOW_MULTIPLE = { 'received' => true, 'resent-date' => true, 'resent-from' => true, 'resent-sender' => true, 'resent-to' => true, 'resent-cc' => true, 'resent-bcc' => true, 'resent-message-id' => true, 'comments' => true, 'keywords' => true   header
USE_ARRAY = ALLOW_MULTIPLE
FIELD_ORDER = %w( return-path received resent-date resent-from resent-sender resent-to resent-cc resent-bcc resent-message-id date from sender reply-to to cc bcc message-id in-reply-to references subject comments keywords mime-version content-type content-transfer-encoding content-disposition content-description )
NOSEND_FIELDS = %w( received bcc )

External Aliases

load -> load_from
load -> loadfrom

Attributes

port  [R]  Provides access to the port this email is using to hold it‘s data

Example:

 mail = TMail::Mail.parse(email_string)
 mail.port
 #=> #<TMail::StringPort:id=0xa2c952>

Public Class methods

Opens an email that has been saved out as a file by itself.

This function will read a file non-destructively and then parse the contents and return a TMail::Mail object.

Does not handle multiple email mailboxes (like a unix mbox) for that use the TMail::UNIXMbox class.

Example:

 mail = TMail::Mail.load('filename')

Parses an email from the supplied string and returns a TMail::Mail object.

Example:

 require 'rubygems'; require 'tmail'
 email_string =<<HEREDOC
 To: mikel@lindsaar.net
 From: mikel@me.com
 Subject: This is a short Email

 Hello there Mikel!

 HEREDOC
 mail = TMail::Mail.parse(email_string)
 #=> #<TMail::Mail port=#<TMail::StringPort:id=0xa30ac0> bodyport=nil>
 mail.body
 #=> "Hello there Mikel!\n\n"

Public Instance methods

Returns a TMail::AddressHeader object of the field you are querying. Examples:

 @mail['from']  #=> #<TMail::AddressHeader "mikel@test.com.au">
 @mail['to']    #=> #<TMail::AddressHeader "mikel@test.com.au">

You can get the string value of this by passing "to_s" to the query: Example:

 @mail['to'].to_s #=> "mikel@test.com.au"

Allows you to set or delete TMail header objects at will. Examples:

 @mail = TMail::Mail.new
 @mail['to'].to_s       # => 'mikel@test.com.au'
 @mail['to'] = 'mikel@elsewhere.org'
 @mail['to'].to_s       # => 'mikel@elsewhere.org'
 @mail.encoded          # => "To: mikel@elsewhere.org\r\n\r\n"
 @mail['to'] = nil
 @mail['to'].to_s       # => nil
 @mail.encoded          # => "\r\n"

Note: setting mail[] = nil actually deletes the header field in question from the object, it does not just set the value of the hash to nil

Returns the result of decoding the TMail::Mail object body without altering the current body

Convert the Mail object‘s body into a Base64 decoded email returning the modified Mail object

Return the result of encoding the TMail::Mail object body without altering the current body

Convert the Mail object‘s body into a Base64 encoded email returning the modified Mail object

Returns who the email bcc‘d as an Array of email addresses as opposed to an Array of TMail::Address objects which is what Mail#to_addrs returns

Example:

 mail = TMail::Mail.new
 mail.bcc = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.bcc #=>  ["mikel@me.org", "mikel@you.org"]

Destructively sets the "Bcc:" field to the passed array of strings (which should be valid email addresses)

Example:

 mail = TMail::Mail.new
 mail.bcc = ["mikel@abc.com", "Mikel <mikel@xyz.com>"]
 mail.bcc #=>  ["mikel@abc.org", "mikel@xyz.org"]
 mail['bcc'].to_s #=> "mikel@abc.com, Mikel <mikel@xyz.com>"

Return a TMail::Addresses instance for each entry in the "Bcc:" field of the mail object header.

If the "Bcc:" field does not exist, will return nil by default or the value you pass as the optional parameter.

Example:

 mail = TMail::Mail.new
 mail.bcc_addrs #=> nil
 mail.bcc_addrs([]) #=> []
 mail.bcc = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.bcc_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Destructively set the to field of the "Bcc:" header to equal the passed in string.

TMail will parse your contents and turn each valid email address into a TMail::Address object before assigning it to the mail message.

Example:

 mail = TMail::Mail.new
 mail.bcc = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.bcc_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Returns who the email cc‘d as an Array of email addresses as opposed to an Array of TMail::Address objects which is what Mail#to_addrs returns

Example:

 mail = TMail::Mail.new
 mail.cc = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.cc #=>  ["mikel@me.org", "mikel@you.org"]

Destructively sets the "Cc:" field to the passed array of strings (which should be valid email addresses)

Example:

 mail = TMail::Mail.new
 mail.cc = ["mikel@abc.com", "Mikel <mikel@xyz.com>"]
 mail.cc #=>  ["mikel@abc.org", "mikel@xyz.org"]
 mail['cc'].to_s #=> "mikel@abc.com, Mikel <mikel@xyz.com>"

Return a TMail::Addresses instance for each entry in the "Cc:" field of the mail object header.

If the "Cc:" field does not exist, will return nil by default or the value you pass as the optional parameter.

Example:

 mail = TMail::Mail.new
 mail.cc_addrs #=> nil
 mail.cc_addrs([]) #=> []
 mail.cc = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.cc_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Destructively set the to field of the "Cc:" header to equal the passed in string.

TMail will parse your contents and turn each valid email address into a TMail::Address object before assigning it to the mail message.

Example:

 mail = TMail::Mail.new
 mail.cc = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.cc_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Returns the character set of the email. Returns nil if no encoding set or returns whatever default you pass as a parameter - note passing the parameter does NOT change the mail object in any way.

Example:

 mail = TMail::Mail.load("path_to/utf8_email")
 mail.charset #=> "UTF-8"

 mail = TMail::Mail.new
 mail.charset #=> nil
 mail.charset("US-ASCII") #=> "US-ASCII"

Destructively sets the character set used by this mail object to the passed string, you should note though that this does nothing to the mail body, just changes the header value, you will need to transliterate the body as well to match whatever you put in this header value if you are changing character sets.

Example:

 mail = TMail::Mail.new
 mail.charset #=> nil
 mail.charset = "UTF-8"
 mail.charset #=> "UTF-8"
content_disposition( default = nil )

Alias for disposition

content_disposition=( str, params = nil )

Alias for set_disposition

content_transfer_encoding( default = nil )

Alias for transfer_encoding

content_transfer_encoding=( str )

Alias for transfer_encoding=

Returns the current "Content-Type" of the mail instance.

If the content_type field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.content_type #=> nil
 mail.content_type([]) #=> []
 mail = TMail::Mail.load("../test/fixtures/raw_email")
 mail.content_type #=> "text/plain"
content_type=( str, sub = nil, param = nil )

Alias for set_content_type

Returns true if this part‘s content main type is text, else returns false. By main type is meant "text/plain" is text. "text/html" is text

Creates a new email in reply to self. Sets the In-Reply-To and References headers for you automagically.

Example:

 mail = TMail::Mail.load("my_email")
 forward_email = mail.create_forward
 forward_email.class         #=> TMail::Mail
 forward_email.content_type  #=> "multipart/mixed"
 forward_email.body          #=> "Attachment: (unnamed)"
 forward_email.encoded       #=> Returns the original email as a MIME attachment

Creates a new email in reply to self. Sets the In-Reply-To and References headers for you automagically.

Example:

 mail = TMail::Mail.load("my_email")
 reply_email = mail.create_reply
 reply_email.class         #=> TMail::Mail
 reply_email.references  #=> ["<d3b8cf8e49f04480850c28713a1f473e@lindsaar.net>"]
 reply_email.in_reply_to #=> ["<d3b8cf8e49f04480850c28713a1f473e@lindsaar.net>"]

Returns the date of the email message as per the "date" header value or returns nil by default (if no date field exists).

You can also pass whatever default you want into this method and it will return that instead of nil if there is no date already set.

Destructively sets the date of the mail object with the passed Time instance, returns a Time instance set to the date/time of the mail

Example:

 now = Time.now
 mail.date = now
 mail.date #=> Sat Nov 03 18:47:50 +1100 2007
 mail.date.class #=> Time

Returns an array of each destination in the email message including to: cc: or bcc:

Example:

 mail.to = "Mikel <mikel@lindsaar.net>"
 mail.cc = "Trans <t@t.com>"
 mail.bcc = "bob <bob@me.com>"
 mail.destinations #=> ["mikel@lindsaar.net", "t@t.com", "bob@me.com"]

Returns the content-disposition of the mail object, returns nil or the passed default value if given

Example:

 mail = TMail::Mail.load("path_to/raw_mail_with_attachment")
 mail.disposition #=> "attachment"

 mail = TMail::Mail.load("path_to/plain_simple_email")
 mail.disposition #=> nil
 mail.disposition(false) #=> false
disposition=( str, params = nil )

Alias for set_disposition

Returns true if the content type of this part of the email is a disposition attachment

Returns the value of a parameter in an existing content-disposition header

Example:

 mail.set_disposition("attachment", {:filename => "test.rb"})
 mail['content-disposition'].to_s #=> "attachment; filename=test.rb"
 mail.disposition_param("filename") #=> "test.rb"
 mail.disposition_param("missing_param_key") #=> nil
 mail.disposition_param("missing_param_key", false) #=> false
 mail.disposition_param("missing_param_key", "Nothing to see here") #=> "Nothing to see here"
each_dest( &block )

Alias for each_destination

Yields a block of destination, yielding each as a string.

 (from the destinations example)
 mail.each_destination { |d| puts "#{d.class}: #{d}" }
 String: mikel@lindsaar.net
 String: t@t.com
 String: bob@me.com

Allows you to loop through each header in the TMail::Mail object in a block Example:

  @mail['to'] = 'mikel@elsewhere.org'
  @mail['from'] = 'me@me.com'
  @mail.each_header { |k,v| puts "#{k} = #{v}" }
  # => from = me@me.com
  # => to = mikel@elsewhere.org
each_key( &block )

Alias for each_header_name

each_pair()

Alias for each_header

each_value( &block )

Alias for each_field

encoding( default = nil )

Alias for transfer_encoding

encoding=( str )

Alias for transfer_encoding=

Returns the "sender" field as an array -> useful to find out who to send an error email to.

fetch( key )

Alias for #[]

Returns the "friendly" human readable part of the address

Example:

 mail = TMail::Mail.new
 mail.from = "Mikel Lindsaar <mikel@abc.com>"
 mail.friendly_from #=> "Mikel Lindsaar"

Returns who the email is from as an Array of email address strings instead to an Array of TMail::Address objects which is what Mail#from_addrs returns

Example:

 mail = TMail::Mail.new
 mail.from = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.from #=>  ["mikel@me.org", "mikel@you.org"]

Destructively sets the "From:" field to the passed array of strings (which should be valid email addresses)

Example:

 mail = TMail::Mail.new
 mail.from = ["mikel@abc.com", "Mikel <mikel@xyz.com>"]
 mail.from #=>  ["mikel@abc.org", "mikel@xyz.org"]
 mail['from'].to_s #=> "mikel@abc.com, Mikel <mikel@xyz.com>"

Return a TMail::Addresses instance for each entry in the "From:" field of the mail object header.

If the "From:" field does not exist, will return nil by default or the value you pass as the optional parameter.

Example:

 mail = TMail::Mail.new
 mail.from_addrs #=> nil
 mail.from_addrs([]) #=> []
 mail.from = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.from_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Destructively set the to value of the "From:" header to equal the passed in string.

TMail will parse your contents and turn each valid email address into a TMail::Address object before assigning it to the mail message.

Example:

 mail = TMail::Mail.new
 mail.from_addrs = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.from_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Allows you to query the mail object with a string to get the contents of the field you want.

Returns a string of the exact contents of the field

 mail.from = "mikel <mikel@lindsaar.net>"
 mail.header_string("From") #=> "mikel <mikel@lindsaar.net>"

Returns the "In-Reply-To:" field contents as an array of this mail instance if it exists

If the in_reply_to field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.in_reply_to #=> nil
 mail.in_reply_to([]) #=> []
 TMail::Mail.load("../test/fixtures/raw_email_reply")
 mail.in_reply_to #=> ["<348F04F142D69C21-291E56D292BC@xxxx.net>"]

Destructively sets the value of the "In-Reply-To:" field of an email.

Accepts an array of a single string of a message id

Example:

 mail = TMail::Mail.new
 mail.in_reply_to = ["<348F04F142D69C21-291E56D292BC@xxxx.net>"]
 mail.in_reply_to #=> ["<348F04F142D69C21-291E56D292BC@xxxx.net>"]
indexes( *args )

Alias for values_at

indices( *args )

Alias for values_at

Returns the current main type of the "Content-Type" of the mail instance.

If the content_type field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.main_type #=> nil
 mail.main_type([]) #=> []
 mail = TMail::Mail.load("../test/fixtures/raw_email")
 mail.main_type #=> "text"

Returns the message ID for this mail object instance.

If the message_id field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.message_id #=> nil
 mail.message_id(TMail.new_message_id) #=> "<47404c5326d9c_2ad4fbb80161@baci.local.tmail>"
 mail.message_id = TMail.new_message_id
 mail.message_id #=> "<47404c5326d9c_2ad4fbb80161@baci.local.tmail>"

Destructively sets the message ID of the mail object instance to the passed in string

Invalid message IDs are ignored (silently, unless configured otherwise) and result in a nil message ID. Left and right angle brackets are required.

Example:

 mail = TMail::Mail.new
 mail.message_id = "<348F04F142D69C21-291E56D292BC@xxxx.net>"
 mail.message_id #=> "<348F04F142D69C21-291E56D292BC@xxxx.net>"
 mail.message_id = "this_is_my_badly_formatted_message_id"
 mail.message_id #=> nil

Returns the listed MIME version of this email from the "Mime-Version:" header field

If the mime_version field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.mime_version #=> nil
 mail.mime_version([]) #=> []
 mail = TMail::Mail.load("../test/fixtures/raw_email")
 mail.mime_version #=> "1.0"

Returns true if the Mail object is a multipart message

preamble()

Alias for quoted_body

preamble=(str)

Alias for quoted_body=

quoted_subject(to_charset = 'utf-8')

Alias for subject

Returns the references of this email (prior messages relating to this message) as an array of message ID strings. Useful when you are trying to thread an email.

If the references field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.references #=> nil
 mail.references([]) #=> []
 mail = TMail::Mail.load("../test/fixtures/raw_email_reply")
 mail.references #=> ["<473FF3B8.9020707@xxx.org>", "<348F04F142D69C21-291E56D292BC@xxxx.net>"]

Destructively sets the value of the "References:" field of an email.

Accepts an array of strings of message IDs

Example:

 mail = TMail::Mail.new
 mail.references = ["<348F04F142D69C21-291E56D292BC@xxxx.net>"]
 mail.references #=> ["<348F04F142D69C21-291E56D292BC@xxxx.net>"]

Returns an array of reply to addresses that the Mail object has, or if the Mail message has no reply-to, returns an array of the Mail objects from addresses. Else returns the default which can either be passed as a parameter or defaults to nil

Example:

 mail.from = "Mikel <mikel@lindsaar.net>"
 mail.reply_to = nil
 mail.reply_addresses #=> [""]

Returns who the email is from as an Array of email address strings instead to an Array of TMail::Address objects which is what Mail#reply_to_addrs returns

Example:

 mail = TMail::Mail.new
 mail.reply_to = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.reply_to #=>  ["mikel@me.org", "mikel@you.org"]

Destructively sets the "Reply-To:" field to the passed array of strings (which should be valid email addresses)

Example:

 mail = TMail::Mail.new
 mail.reply_to = ["mikel@abc.com", "Mikel <mikel@xyz.com>"]
 mail.reply_to #=>  ["mikel@abc.org", "mikel@xyz.org"]
 mail['reply_to'].to_s #=> "mikel@abc.com, Mikel <mikel@xyz.com>"

Return a TMail::Addresses instance for each entry in the "Reply-To:" field of the mail object header.

If the "Reply-To:" field does not exist, will return nil by default or the value you pass as the optional parameter.

Example:

 mail = TMail::Mail.new
 mail.reply_to_addrs #=> nil
 mail.reply_to_addrs([]) #=> []
 mail.reply_to = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.reply_to_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Destructively set the to value of the "Reply-To:" header to equal the passed in argument.

TMail will parse your contents and turn each valid email address into a TMail::Address object before assigning it to the mail message.

Example:

 mail = TMail::Mail.new
 mail.reply_to_addrs = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.reply_to_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Returns who the sender of this mail is as string instead to an Array of TMail::Address objects which is what Mail#sender_addr returns

Example:

 mail = TMail::Mail.new
 mail.sender = "Mikel <mikel@me.org>"
 mail.sender #=>  "mikel@me.org"

Destructively sets the "Sender:" field to the passed string (which should be a valid email address)

Example:

 mail = TMail::Mail.new
 mail.sender = "mikel@abc.com"
 mail.sender #=>  "mikel@abc.org"
 mail['sender'].to_s #=> "mikel@abc.com"

Return a TMail::Addresses instance of the "Sender:" field of the mail object header.

If the "Sender:" field does not exist, will return nil by default or the value you pass as the optional parameter.

Example:

 mail = TMail::Mail.new
 mail.sender #=> nil
 mail.sender([]) #=> []
 mail.sender = "Mikel <mikel@me.org>"
 mail.reply_to_addrs #=>  [#<TMail::Address mikel@me.org>]

Destructively set the to value of the "Sender:" header to equal the passed in argument.

TMail will parse your contents and turn each valid email address into a TMail::Address object before assigning it to the mail message.

Example:

 mail = TMail::Mail.new
 mail.sender_addrs = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.sender_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]
set_content_disposition( str, params = nil )

Alias for set_disposition

Destructively sets the "Content-Type:" header field of this mail object

Allows you to set the main type, sub type as well as parameters to the field. The main type and sub type need to be a string.

The optional params hash can be passed with keys as symbols and values as a string, or strings as keys and values.

Example:

 mail = TMail::Mail.new
 mail.set_content_type("text", "plain")
 mail.to_s #=> "Content-Type: text/plain\n\n"

 mail.set_content_type("text", "plain", {:charset => "EUC-KR", :format => "flowed"})
 mail.to_s #=> "Content-Type: text/plain; charset=EUC-KR; format=flowed\n\n"

 mail.set_content_type("text", "plain", {"charset" => "EUC-KR", "format" => "flowed"})
 mail.to_s #=> "Content-Type: text/plain; charset=EUC-KR; format=flowed\n\n"

Allows you to set the content-disposition of the mail object. Accepts a type and a hash of parameters.

Example:

 mail.set_disposition("attachment", {:filename => "test.rb"})
 mail.disposition #=> "attachment"
 mail['content-disposition'].to_s #=> "attachment; filename=test.rb"
store( key, val )

Alias for #[]=

Returns the time of the mail message formatted to your taste using a strftime format string. If no date set returns nil by default or whatever value you pass as the second optional parameter.

 time = Time.now # (on Nov 16 2007)
 mail.date = time
 mail.strftime("%D") #=> "11/16/07"

Returns the current sub type of the "Content-Type" of the mail instance.

If the content_type field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.sub_type #=> nil
 mail.sub_type([]) #=> []
 mail = TMail::Mail.load("../test/fixtures/raw_email")
 mail.sub_type #=> "plain"

Returns the subject of the mail instance.

If the subject field does not exist, returns nil by default or you can pass in as the parameter for what you want the default value to be.

Example:

 mail = TMail::Mail.new
 mail.subject #=> nil
 mail.subject("") #=> ""
 mail.subject = "Hello"
 mail.subject #=> "Hello"

Destructively sets the passed string as the subject of the mail message.

Example

 mail = TMail::Mail.new
 mail.subject #=> "This subject"
 mail.subject = "Another subject"
 mail.subject #=> "Another subject"

Returns who the email is to as an Array of email addresses as opposed to an Array of TMail::Address objects which is what Mail#to_addrs returns

Example:

 mail = TMail::Mail.new
 mail.to = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.to #=>  ["mikel@me.org", "mikel@you.org"]

Destructively sets the "To:" field to the passed array of strings (which should be valid email addresses)

Example:

 mail = TMail::Mail.new
 mail.to = ["mikel@abc.com", "Mikel <mikel@xyz.com>"]
 mail.to #=>  ["mikel@abc.org", "mikel@xyz.org"]
 mail['to'].to_s #=> "mikel@abc.com, Mikel <mikel@xyz.com>"

Return a TMail::Addresses instance for each entry in the "To:" field of the mail object header.

If the "To:" field does not exist, will return nil by default or the value you pass as the optional parameter.

Example:

 mail = TMail::Mail.new
 mail.to_addrs #=> nil
 mail.to_addrs([]) #=> []
 mail.to = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.to_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Destructively set the to field of the "To:" header to equal the passed in string.

TMail will parse your contents and turn each valid email address into a TMail::Address object before assigning it to the mail message.

Example:

 mail = TMail::Mail.new
 mail.to = "Mikel <mikel@me.org>, another Mikel <mikel@you.org>"
 mail.to_addrs #=>  [#<TMail::Address mikel@me.org>, #<TMail::Address mikel@you.org>]

Returns the transfer encoding of the email. Returns nil if no encoding set or returns whatever default you pass as a parameter - note passing the parameter does NOT change the mail object in any way.

Example:

 mail = TMail::Mail.load("path_to/base64_encoded_email")
 mail.transfer_encoding #=> "base64"

 mail = TMail::Mail.new
 mail.transfer_encoding #=> nil
 mail.transfer_encoding("base64") #=> "base64"

Destructively sets the transfer encoding of the mail object to the passed string, you should note though that this does nothing to the mail body, just changes the header value, you will need to encode or decode the body as well to match whatever you put in this header value.

Example:

 mail = TMail::Mail.new
 mail.transfer_encoding #=> nil
 mail.transfer_encoding = "base64"
 mail.transfer_encoding #=> "base64"

Returns the named type parameter as a string, from the "Content-Type:" header.

Example:

 mail = TMail::Mail.new
 mail.type_param("charset") #=> nil
 mail.type_param("charset", []) #=> []
 mail.set_content_type("text", "plain", {:charset => "EUC-KR", :format => "flowed"})
 mail.type_param("charset") #=> "EUC-KR"
 mail.type_param("format") #=> "flowed"

[Validate]