Pop Peeper is a freeware email client and notifier that can be run portably from a USB device. This portable Email Software can automatically import your current email accounts from Outlook Express or Windows Mail and can also be used with your GMail, Hotmail, LiveMail, MSN, Yahoo, GMail, Mail, MyWay, Excite, iWon, Lycos, RediffMail, Juno and NetZero accounts.
Quick Mailer (QM) is a Tiny Free Portable eMail Client. The eMail Tool is super tiny, fast and easy to use.
Popcorn is a Free, stand alone, text only email client with SMTP/POP3 support. It can handle attachments, but does not render HTML emails or display images within email.
Sylpheed is a clean, powerful and easy to use e-Mail client that can be run portably from a USB flash drive or other portable device. Built mainly for Unix like systems such as Linux, BSD and Mac OSX, there is also a version for Windows users which is our main focus here.
Koma Mail is a free portable e-mail client. It supports multiple user accounts, IMAP, POP3, SMAP, WebDAV, encryption via SSL, spam filter, built in
Reach-a-Mail is a portable e-Mail client that enables users to bring their POP mail accounts with them wherever they go on a portable USB device or flash drive. Like most email software, It features an address book to store your contacts and supports SSL and TLS.
Thunderbird Portable is a free open source portable email software that allows you to take all of your saved email and contacts with you wherever you go. It can be run from a USB flash drive or any other external removable device.
