# man > Mail::Message::Field::AuthResults(3pm)

## NAME
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown) - message header field authentication result

## INHERITANCE
     [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)
       is a [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)
       is a [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)
       is a [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)
       is a [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

## SYNOPSIS
     my $f = [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)->new('Authentication-Results' => '...');

     my $g = [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)->new('Authentication-Results');
     $g->addResult(method => 'dkim', result => 'fail');

## DESCRIPTION
    Mail Transfer Agents may check the authenticity of an incoming message. They add
    'Authentication-Results' headers, maybe more than one. This implementation is based on RFC7601.

    Extends "DESCRIPTION" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

## OVERLOADED
    Extends "OVERLOADED" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    overload: ""
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: 0+
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: <=>
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: bool
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: cmp
        Inherited, see "OVERLOADED" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    overload: stringification
        Inherited, see "OVERLOADED" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

## METHODS
    Extends "METHODS" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

### Constructors
    Extends "Constructors" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->clone()
        Inherited, see "Constructors" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->from($field, %options)
        Inherited, see "Constructors" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->new($data)
         -Option    --Defined in                      --Default
          attributes  [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)  <ignored>
          charset     [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)        undef
          datum       [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)  undef
          encoding    [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)        'q'
          force       [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)        false
          language    [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)        undef
          log         [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)                    'WARNINGS'
          results                                       []
          server                                        <required>
          trace       [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)                    'WARNINGS'
          version                                       undef

        attributes => ATTRS
        charset => STRING
        datum => STRING
        encoding => 'q'|'Q'|'b'|'B'
        force => BOOLEAN
        language => STRING
        log => LEVEL
        results => ARRAY
          Each authentication method is represented by a HASH, which contains the 'method' and
          'result' keys. Sometimes, there is a 'comment'. Properties of form 'ptype.pname' will be
          there as well.

        server => DOMAIN
          Where the authentication tool ran. This should be your local service, otherwise you may
          accept spoofed headers!

        trace => LEVEL
        version => INTEGER

### The field
    Extends "The field" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->isStructured()
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->isStructured()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->length()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->nrLines()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->print( [$fh] )
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->size()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->string( [$wrap] )
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->toDisclose()
        Inherited, see "The field" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Access to the name
    Extends "Access to the name" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->Name()
        Inherited, see "Access to the name" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->name()
        Inherited, see "Access to the name" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->wellformedName( [STRING] )
        Inherited, see "Access to the name" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Access to the body
    Extends "Access to the body" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->body()
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->decodedBody(%options)
        Inherited, see "Access to the body" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->folded()
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->foldedBody( [$body] )
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->stripCFWS( [STRING] )
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->stripCFWS( [STRING] )
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->unfoldedBody( [$body, [$wrap]] )
        Inherited, see "Access to the body" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Access to the content
    Extends "Access to the content" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->addAttribute(...)
        Attributes are not supported here.

    $obj->addResult(HASH|PAIRS)
        Add new results to this header. Invalid results are ignored.

    $obj->addresses()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->attrPairs()
        Inherited, see "Access to the content" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)

    $obj->attribute( $object|<STRING, %options>|<$name,$value,%options> )
        Inherited, see "Access to the content" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)

    $obj->attributes()
        Inherited, see "Access to the content" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)

    $obj->beautify()
        Inherited, see "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->comment( [STRING] )
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->createComment(STRING, %options)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->createComment(STRING, %options)
        Inherited, see "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->createPhrase(STRING, %options)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->createPhrase(STRING, %options)
        Inherited, see "Access to the content" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->results()
        Returns a LIST of result HASHes. Each HASH at least contains keys 'method',
        'method_version', and 'result'.

    $obj->server()
        The hostname which ran this authentication tool.

    $obj->study()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->toDate( [$time] )
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->toDate( [$time] )
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->toInt()
        Inherited, see "Access to the content" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->version()
        The version of the 'Authentication-Results' header, which may be different from '1'
        (default) for successors of RFC7601.

### Other methods
    Extends "Other methods" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->dateToTimestamp(STRING)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->dateToTimestamp(STRING)
        Inherited, see "Other methods" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Internals
    Extends "Internals" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->consume( $line | <$name,<$body|$objects>> )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->decode(STRING, %options)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->decode(STRING, %options)
        Inherited, see "Internals" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->defaultWrapLength( [$length] )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->encode(STRING, %options)
        Inherited, see "Internals" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->fold( $name, $body, [$maxchars] )
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->fold( $name, $body, [$maxchars] )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->setWrapLength( [$length] )
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->stringifyData(STRING|ARRAY|$objects)
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

    $obj->unfold(STRING)
        Inherited, see "Internals" in [Mail::Message::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField/markdown)

### Parsing
    Extends "Parsing" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->consumeComment(STRING)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->consumeComment(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->consumeDotAtom(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->consumePhrase(STRING)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->consumePhrase(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->datum( [$value] )
        Inherited, see "Parsing" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown)

    $obj->parse(STRING)
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

    $obj->produceBody()
        Inherited, see "Parsing" in [Mail::Message::Field::Full](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AFull/markdown)

### Error handling
    Extends "Error handling" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->AUTOLOAD()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->addReport($object)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level,
    $callback] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->errors()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->log( [$level, [$strings]] )
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->log( [$level, [$strings]] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logPriority($level)
    [Mail::Message::Field::AuthResults](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AAuthResults/markdown)->logPriority($level)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logSettings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->notImplemented()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->report( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->reportAll( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->trace( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->warnings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

### Cleanup
    Extends "Cleanup" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

    $obj->DESTROY()
        Inherited, see "Cleanup" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

## DETAILS
    Extends "DETAILS" in [Mail::Message::Field::Structured](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AField%3A%3AStructured/markdown).

## DIAGNOSTICS
    Warning: Field content is not numerical: $content
        The numeric value of a field is requested (for instance the "Lines" or "Content-Length"
        fields should be numerical), however the data contains weird characters.

    Warning: Illegal character in charset '$charset'
        The field is created with an utf8 string which only contains data from the specified
        character set. However, that character set can never be a valid name because it contains
        characters which are not permitted.

    Warning: Illegal character in field name $name
        A new field is being created which does contain characters not permitted by the RFCs. Using
        this field in messages may break other e-mail clients or transfer agents, and therefore
        mutulate or extinguish your message.

    Warning: Illegal character in language '$lang'
        The field is created with data which is specified to be in a certain language, however, the
        name of the language cannot be valid: it contains characters which are not permitted by the
        RFCs.

    Warning: Illegal encoding '$encoding', used 'q'
        The RFCs only permit base64 ("b " or "B ") or quoted-printable ("q" or "Q") encoding. Other
        than these four options are illegal.

    Error: No attributes for Authentication-Results
        Is is not possible to add attributes to this field.

    Error: Package $package does not implement $method.
        Fatal error: the specific package (or one of its superclasses) does not implement this
        method where it should. This message means that some other related classes do implement this
        method however the class at hand does not. Probably you should investigate this and probably
        inform the author of the package.

## SEE ALSO
    This module is part of Mail-Message distribution version 3.012, built on February 11, 2022.
    Website: <http://perl.overmeer.net/CPAN/>

## LICENSE
    Copyrights 2001-2022 by [Mark Overmeer <<markov@cpan.org>>]. For other contributors see ChangeLog.

    This program is free software; you can redistribute it and/or modify it under the same terms as
    Perl itself. See <http://dev.perl.org/licenses/>