Mac Apps for E-mail Software

Entourage Time Machine

Trial version

Back up, browse, and restore all your e-mails.

Mailvita EML to PST Converter

Trial version

Convert EML files to PST format.

Eudora Thing

Free

Colorize your Eudora quoted-text strings up to six levels deep.

Massive Mail

Trial version

Generate customized email messages.

Email Merge

Paid

batch mailings of individualized emails

Mailsum

Paid

Mailsum gives you insight in your email behavior.

RoboPostman

Trial version

Mailing list software with dynamic content customization.

Yahoo Mailto Handler

Free

redirects mailto: link to Yahoo email page

4D WebMail

Free

Access and manage your email from any Web browser.

PstServer

Trial version

Add Outlook pst support to your favorite e-mail client.

eMail Extractor

Trial version

Tool to extract email addresses from files.

iFaces

Free

display unread mail's sender picture on your desktop

MailSuite

Trial version

Manage Mail like a maven.

Horcrux

Trial version

Automatically backup your mail from any IMAP-supported accounts (Gmail, Microsoft Exchange, etc) with great ease.

Mulberry

Free

scalable IMAP email client with SSL support

Groupmail Free

Free

Send newsletters to groups of people.

Unibox

Paid

People-centric email client.

Mailspring

Free

Boost your productivity and send better email.

OLM to PST Converter Pro

Free

Convert OLM files to PST files on your Mac.

Airmail

Paid

Send your mail with lightning speed.

MailGoGoGo

Paid

spam filtering software

Mail Call

Paid

Full-featured mail notifier for email accounts that support IMAP.

FastEmailCheck Pro

Paid

check 10 OS X e-mail accounts simultaneously

Magellan Pro

Paid

email management tool automates mail processing