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Creates a new POP3 object and open the connection. Equivalent to

Net::POP3.new(address, port, isapop).start(account, password)

If block is provided, yields the newly-opened POP3 object to it, and automatically closes it at the end of the session.

Example

Net::POP3.start(addr, port, account, password) do |pop|
  pop.each_mail do |m|
    file.write m.pop
    m.delete
  end
end

The port number to connect to.

true if the POP3 session has started.

Starts a POP3 session.

When called with block, gives a POP3 object to the block and closes the session after block call finishes.

This method raises a POPAuthenticationError if authentication fails.

Resets the session. This clears all “deleted” marks from messages.

This method raises a POPError if an error occurs.

Fetches the message header and lines lines of body.

The optional dest argument is obsolete.

This method raises a POPError if an error occurs.

Returns truth value if this object uses STARTTLS. If this object always uses STARTTLS, returns :always. If this object uses STARTTLS when the server support TLS, returns :auto.

Creates a new Net::SMTP object and connects to the server.

This method is equivalent to:

Net::SMTP.new(address, port).start(helo: helo_domain, user: account, secret: password, authtype: authtype, tls_verify: flag, tls_hostname: hostname)

Example

Net::SMTP.start('your.smtp.server') do |smtp|
  smtp.send_message msgstr, 'from@example.com', ['dest@example.com']
end

Block Usage

If called with a block, the newly-opened Net::SMTP object is yielded to the block, and automatically closed when the block finishes. If called without a block, the newly-opened Net::SMTP object is returned to the caller, and it is the caller’s responsibility to close it when finished.

Parameters

address is the hostname or ip address of your smtp server.

port is the port to connect to; it defaults to port 25.

helo is the HELO domain provided by the client to the server (see overview comments); it defaults to ‘localhost’.

The remaining arguments are used for SMTP authentication, if required or desired. user is the account name; secret is your password or other authentication token; and authtype is the authentication type, one of :plain, :login, or :cram_md5. See the discussion of SMTP Authentication in the overview notes. If tls_verify is true, verify the server’s certificate. The default is true. If the hostname in the server certificate is different from address, it can be specified with tls_hostname.

Errors

This method may raise:

• Net::SMTPAuthenticationError

• Net::SMTPServerBusy

• Net::SMTPSyntaxError

• Net::SMTPFatalError

• Net::SMTPUnknownError

• Net::OpenTimeout

• Net::ReadTimeout

• IOError

true if the SMTP session has been started.

Opens a TCP connection and starts the SMTP session.

Parameters

helo is the HELO domain that you’ll dispatch mails from; see the discussion in the overview notes.

If both of user and secret are given, SMTP authentication will be attempted using the AUTH command. authtype specifies the type of authentication to attempt; it must be one of :login, :plain, and :cram_md5. See the notes on SMTP Authentication in the overview. If tls_verify is true, verify the server’s certificate. The default is true. If the hostname in the server certificate is different from address, it can be specified with tls_hostname.

Block Usage

When this methods is called with a block, the newly-started SMTP object is yielded to the block, and automatically closed after the block call finishes. Otherwise, it is the caller’s responsibility to close the session when finished.

Example

This is very similar to the class method SMTP.start.

require 'net/smtp'
smtp = Net::SMTP.new('smtp.mail.server', 25)
smtp.start(helo: helo_domain, user: account, secret: password, authtype: authtype) do |smtp|
  smtp.send_message msgstr, 'from@example.com', ['dest@example.com']
end

The primary use of this method (as opposed to SMTP.start) is probably to set debugging (set_debug_output) or ESMTP (esmtp=), which must be done before the session is started.

Errors

If session has already been started, an IOError will be raised.

This method may raise:

• Net::SMTPAuthenticationError

• Net::SMTPServerBusy

• Net::SMTPSyntaxError

• Net::SMTPFatalError

• Net::SMTPUnknownError

• Net::OpenTimeout

• Net::ReadTimeout

• IOError

Returns a String representation of the URI::FTP.

See OptionParser.reject.

Inserts switch at the head of the list, and associates short, long and negated long options. Arguments are:

switch

OptionParser::Switch instance to be inserted.

short_opts

List of short style options.

long_opts

List of long style options.

nolong_opts

List of long style options with “no-” prefix.

prepend(switch, short_opts, long_opts, nolong_opts)

Pushes back erred argument(s) to argv.

Returns error reason. Override this for I18N.

Appends sep to the text to be output. By default sep is ‘ ’

width argument is here for compatibility. It is a noop argument.

This is used as a predicate, and ought to be called first.

Rewinds the internal position for enumeration.

See Enumerator#rewind.