Can't find offlineimap: faramir root # emerge offlineimap Calculating dependencies ...done! >>> emerge (1 of 1) net-mail/offlineimap-4.0.0 to / >>> Downloading http://gentoo.oregonstate.edu/distfiles/offlineimap_4.0.0.tar.gz --00:28:49-- http://gentoo.oregonstate.edu/distfiles/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving gentoo.oregonstate.edu... 140.211.166.134 Connecting to gentoo.oregonstate.edu[140.211.166.134]:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: http://gentoo.osuosl.org/distfiles/offlineimap_4.0.0.tar.gz [following] --00:28:49-- http://gentoo.osuosl.org/distfiles/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving gentoo.osuosl.org... 140.211.166.134 Connecting to gentoo.osuosl.org[140.211.166.134]:80... connected. HTTP request sent, awaiting response... 404 Not Found 00:28:49 ERROR 404: Not Found. >>> Downloading http://distro.ibiblio.org/pub/Linux/distributions/gentoo/distfiles/offlineimap_4.0.0.tar.gz --00:28:49-- http://distro.ibiblio.org/pub/Linux/distributions/gentoo/distfiles/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving distro.ibiblio.org... 152.2.210.109 Connecting to distro.ibiblio.org[152.2.210.109]:80... faramir root # emerge offlineimap Calculating dependencies ...done! >>> emerge (1 of 1) net-mail/offlineimap-4.0.0 to / >>> Downloading http://gentoo.oregonstate.edu/distfiles/offlineimap_4.0.0.tar.gz --00:28:54-- http://gentoo.oregonstate.edu/distfiles/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving gentoo.oregonstate.edu... 140.211.166.134 Connecting to gentoo.oregonstate.edu[140.211.166.134]:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: http://gentoo.osuosl.org/distfiles/offlineimap_4.0.0.tar.gz [following] --00:28:54-- http://gentoo.osuosl.org/distfiles/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving gentoo.osuosl.org... 140.211.166.134 Connecting to gentoo.osuosl.org[140.211.166.134]:80... connected. HTTP request sent, awaiting response... 404 Not Found 00:28:54 ERROR 404: Not Found. >>> Downloading http://distro.ibiblio.org/pub/Linux/distributions/gentoo/distfiles/offlineimap_4.0.0.tar.gz --00:28:54-- http://distro.ibiblio.org/pub/Linux/distributions/gentoo/distfiles/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving distro.ibiblio.org... 152.2.210.109 Connecting to distro.ibiblio.org[152.2.210.109]:80... connected. HTTP request sent, awaiting response... 404 Not Found 00:28:55 ERROR 404: Not Found. >>> Downloading http://gopher.quux.org:70/devel/offlineimap/offlineimap_4.0.0.tar.gz --00:28:55-- http://gopher.quux.org:70/devel/offlineimap/offlineimap_4.0.0.tar.gz => `/usr/portage/distfiles/offlineimap_4.0.0.tar.gz' Resolving gopher.quux.org... 69.10.152.57 Connecting to gopher.quux.org[69.10.152.57]:70... connected. HTTP request sent, awaiting response... 404 Not Found 00:28:56 ERROR 404: Not Found. !!! Couldn't download offlineimap_4.0.0.tar.gz. Aborting.
FYI, there is a new upstream version, 4.0.4: http://gopher.quux.org:70/devel/offlineimap
The problem you encountered is because upstream only keeps latest version available for download. Latest version is 4.0.6 now, so only offlineimap-4.0.6.ebuild will work. I've just tried renaming latest portage ebuild to abovementioned name and merging, and it works just fine.
Veriosn bumped in portage.