Simple interface for creating (not parsing!) MIME messages

https://metacpan.org/release/MIME-Lite

Provide routine to transform a HTML page into a MIME mail

https://metacpan.org/release/MIME-Lite-HTML

Set of perl5 modules for MIME

https://metacpan.org/release/MIME-tools

Perl extension for determining MIME types

https://metacpan.org/release/MIME-Types

Store multi-level hash structure in single level tied hash

https://metacpan.org/release/MLDBM

MLDBM::Sync - safe concurrent access to MLDBM databases

http://search.cpan.org/dist/MLDBM-Sync/

Add mro::* interface compatibility for Perls < 5.9.5

https://metacpan.org/release/MRO-Compat

Object Oriented Authentication-Results Headers

https://metacpan.org/release/Mail-AuthenticationResults

Perl5 module to process and/or create DKIM email

http://jason.long.name/dkimproxy/

Perl5 module to process and/or create DKIM email

https://github.com/msimerson/mail-dmarc

Perl implementation of DomainKeys

https://metacpan.org/release/Mail-DomainKeys

Reference implementation of the RFC 4408 SPF protocol

https://metacpan.org/release/Mail-SPF

Perl module implementing a simple, platform-independent mailer

http://search.cpan.org/dist/Mail-Sendmail/

Perl5 modules for dealing with Internet e-mail messages

http://search.cpan.org/dist/MailTools/

Encoding and decoding of base36 strings

https://metacpan.org/release/Math-Base36

Arbitrary size integer math perl package

https://metacpan.org/release/Math-BigInt

Manipulate 64 bits integers in Perl

https://metacpan.org/release/Math-Int64

Perl interface to the ISAAC PRNG Algorithm

https://metacpan.org/release/Math-Random-ISAAC

C implementation of the ISAAC PRNG Algorithm

https://metacpan.org/release/Math-Random-ISAAC-XS

Perl extension for rounding numbers

https://metacpan.org/release/Math-Round

Code shared by the DB reader and writer modules

https://metacpan.org/release/MaxMind-DB-Common

Read MaxMind DB files

https://metacpan.org/release/MaxMind-DB-Reader

MeCab library module for Perl5

https://code.google.com/p/mecab/

Comprehensive, DWIM-featured client to the MetaCPAN API

https://metacpan.org/release/MetaCPAN-Client

Write your linewise code for handles; this does the rest

https://metacpan.org/release/Mixin-Linewise

Build and install Perl modules

https://metacpan.org/release/Module-Build

Tiny replacement for Module::Build

https://metacpan.org/release/Module-Build-Tiny

Module::Build class for building XS modules

https://metacpan.org/release/Module-Build-XSUtil

Generate Kwalitee ratings for a distribution

https://metacpan.org/release/Module-CPANTS-Analyse

Parse cpanfile

https://metacpan.org/release/Module-CPANfile

See what modules shipped with versions of Perl

https://metacpan.org/release/Module-CoreList

Find out what CPAN modules are used

https://metacpan.org/release/Module-ExtractUse

Lets you find and use modules in categories

http://search.cpan.org/dist/Module-Find/

Loads one of several alternate underlying implementations for a module

https://metacpan.org/release/Module-Implementation

Standalone, extensible Perl module installer

http://search.cpan.org/dist/Module-Install/

Perl extension to gather package information from perl module files

https://metacpan.org/release/Module-Metadata

Automatically give your module the ability to have plugins

https://metacpan.org/release/Module-Pluggable

Refresh %INC files when updated on disk

https://metacpan.org/release/Module-Refresh

Runtime module handling

https://metacpan.org/release/Module-Runtime

Provide information on conflicts for Module::Runtime

https://metacpan.org/release/Module-Runtime-Conflicts

Recursively scan Perl code for dependencies

http://search.cpan.org/dist/Module-ScanDeps/

Flow-control helpers for Mojo::Promise

https://metacpan.org/release/Mojo-IOLoop-Delay

Mojo::IOLoop::ForkCall

https://metacpan.org/release/Mojo-IOLoop-ForkCall

High-level MVC web framework written in Perl

https://metacpan.org/pod/Mojolicious

Perl module that supports mon, a network and system monitoring daemon

https://metacpan.org/release/Mon

Minimalist Object Orientation (with Moose compatibility)

https://metacpan.org/release/Moo

NativeTrait-like behavior for Moo

https://metacpan.org/release/MooX-HandlesVia

Make your Moo-based object constructors blow up on unknown attributes

https://metacpan.org/release/MooX-StrictConstructor

Some Moosish types and a typer builder

https://metacpan.org/release/MooX-Types-MooseLike

Moo types for numbers

https://metacpan.org/release/MooX-Types-MooseLike-Numeric