alot : Experimental terminal UI for net-mail/notmuch written in Python ( https://github.com/pazz/alot" SRC_URI="${HOMEPAGE}/tarball/${PV} -> ${P}.tar.gz )
alpine : alpine is an easy to use text-based based mail and news client ( http://www.washington.edu/alpine/ http://patches.freeiz.com/alpine/ )
balsa : Email client for GNOME ( http://pawsa.fedorapeople.org/balsa/ )
biabam : Biabam is a small commandline tool for sending mail attachments ( http://www.mmj.dk/biabam/ )
claws-mail : An email client (and news reader) based on GTK+ ( http://www.claws-mail.org/ )
claws-mail-acpi-notifier : This plugin enables mail notification via LEDs on some laptops ( http://www.claws-mail.org/ )
claws-mail-address_keeper : Plugin for Claws to collect all recipients in an address book folder ( http://www.claws-mail.org/ )
claws-mail-archive : Plugin for Claws to add archiving features ( http://www.claws-mail.org/ )
claws-mail-att-remover : This plugin lets you remove attachments from mails ( http://www.claws-mail.org/ )
claws-mail-attachwarner : Warn about missing attachment, if it's mentioned in message body ( http://www.claws-mail.org/ )
claws-mail-clamd : Plugin for Claws to scan for viruses ( http://www.claws-mail.org/ )
claws-mail-fancy : Plugin to display HTML with Webkit ( http://www.claws-mail.org/ )
claws-mail-fetchinfo : Plugin to add additional headers with download information ( http://www.claws-mail.org/ )
claws-mail-gdata : Plugin for Claws to use Google data providers ( http://www.claws-mail.org/ )
claws-mail-gtkhtml : Renders HTML mail using the gtkhtml2 rendering widget ( http://www.claws-mail.org/ )
claws-mail-mailmbox : Plugin to operate on mbox type mailboxes ( http://www.claws-mail.org/ )
claws-mail-newmail : Plugin which writes a header summary to a log file for each received mail ( http://www.claws-mail.org/ )
claws-mail-notification : Plugin providing various ways to notify user of new and unread mail ( http://www.claws-mail.org/ )
claws-mail-pdf-viewer : A plugin for Claws to display PDF files directly ( http://www.claws-mail.org/ )
claws-mail-perl : Plugin to use perl to write filtering rules ( http://www.claws-mail.org )
claws-mail-python : Plugin to integrate with Python ( http://www.claws-mail.org/ )
claws-mail-rssyl : Read your favorite newsfeeds in Claws Mail. RSS 1.0, 2.0 and Atom feeds are currently supported ( http://www.claws-mail.org/ )
claws-mail-spam-report : Plugin for Claws to report spam to various places ( http://www.claws-mail.org/ )
claws-mail-tnef-parse : Plugin for Claws to support application/ms-tnef attachments ( http://www.claws-mail.org/ )
claws-mail-vcalendar : Plugin for Claws to support the vCalendar meeting format ( http://www.claws-mail.org/ )
clawsker : Applet to edit Claws Mail's hidden preferences ( http://www.claws-mail.org/clawsker/ )
cone : CONE: COnsole News reader and Emailer ( http://www.courier-mta.org/cone/ )
drac : A robust implementation of POP-before-SMTP ( http://mail.cc.umanitoba.ca/drac/ )
etpan-ng : etPan is a console mail client that is based on libEtPan ( http://www.etpan.org/other.html )
evolution : Integrated mail, addressbook and calendaring functionality ( https://wiki.gnome.org/Apps/Evolution )
geary : A lightweight, easy-to-use, feature-rich email client ( https://wiki.gnome.org/Apps/Geary )
hap : A terminal mail notification program (replacement for biff) ( http://www.transbay.net/~enf/sw.html )
mail-notification : Status icon informing about new mail ( http://www.nongnu.org/mailnotify/ https://github.com/epienbroek/mail-notification )
mailx : The /bin/mail program, which is used to send mail via shell scripts ( http://www.debian.org/ )
mailx-support : Provides lockspool utility ( http://www.openbsd.org/ )
mutt : A small but very powerful text-based mail client ( http://www.mutt.org/ )
nail : an enhanced mailx-compatible mail client ( http://heirloom.sourceforge.net/ )
nmh : New MH mail reader ( http://www.nongnu.org/nmh/ )
novell-groupwise-client : Novell Groupwise Client for Linux ( http://www.novell.com/products/groupwise/" einfo "${HOMEPAGE} - please download ${SRC_URI} )
pinepgp : Use GPG/PGP with Pine ( http://www.megaloman.com/~hany/software/pinepgp/ )
roundcube : A browser-based multilingual IMAP client with an application-like user interface ( http://roundcube.net )
squirrelmail : Webmail for nuts! ( http://www.squirrelmail.org/ )
sylpheed : A lightweight email client and newsreader ( http://sylpheed.sraoss.jp/ )
thunderbird : Thunderbird Mail Client ( http://www.mozilla.com/en-US/thunderbird/ )
thunderbird-bin : Thunderbird Mail Client ( http://www.mozilla.com/thunderbird )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-portage
If you have a problem : ycarus(-at-)zugaina.org