cyrus-imapd-2.1.15.ebuild have wrong SRC_URI Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 17982 [details] cyrus-imapd-2.1.15-r1.ebuild SRC_URI wrong cyrus-imapd-2.1.5.tar.gz is in ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/
This was fixed yesterday, please emerge --sync and try again.