The digest file for mozilla-thunderbird-1.0 contains an incorrect line for enigmail-0.89.5.tar.gz. It currently reads: MD5 d2e6731ce7142cc63132cb29d91d0fd3 enigmail-0.89.5.tar.gz 358830 I have downloaded the tarball from the following mozilla mirrors: ftp.iasi.roedu.net, ftp.scarlet.be, mozdev.oregonstate.edu and the md5sum and filesize from these are identical, being md5sum abbe1ae46b92941f40d9a3a1f7c509ca filesize 358828 Currently it is impossible to emerge this version of thunderbird with USE="crypt"
What is the link to the exact file you're pulling of the mozilla mirrors? I don't see anything that's EXACTLY named like the one listed. In fact, it is possible to get it working with USE="crypt" as it should be pulling the file from the mirrors. If it's NOT, then you should be trying other gentoo mirrors as mine (tds.net) has the file.
The SRC_URI http://downloads.mozdev.org/enigmail/src/enigmail-${EMVER}.tar.gz resolves to various mozilla mirrors and of the three I tried, being: http://ftp.iasi.roedu.net/mirrors/mozdev.org/enigmail/src/enigmail-0.89.5.tar.gz http://ftp.scarlet.be/pub/mozdev/enigmail/src/enigmail-0.89.5.tar.gz http://mozdev.oregonstate.edu/enigmail/src/enigmail-0.89.5.tar.gz neither the file size nor the md5sum for the tarball matched the values in the digest file.
Sorry this took so long to fix. I copied the new version to the Gentoo mirrors as 0.89.5-r1 and updated the ebuild to use it. Of course now version 1.0.2 is available with a new enigmail, but I guess fixing this late is better than never.