What are some alternatives?
When comparing MailStore and Piler, you can also consider the following products
Gmvault - Backup the emails in your Gmail account.
Mail Backup X - Your one stop mail backup and archiving tool for Mac.
MailSteward - MailSteward : The Ultimate E-mail Manager for Mac OS X
imapsync - Console-based utility for migrating IMAP mailboxes.
MozBackup - Backup tool for Firefox and Thunderbird
MailShelf Pro - MailShelf Pro is a professional email archiving solution that covers all important aspects of a...