Dovecot lower than v2.2.7 generate ssl-parameters.dat with 4096bit ?
dovecot wiki says that it only generates 512/1024bit Diffie Hellman parameters. You can only change that behaviour in verson 2.2.7 or higher. I tried to generate 4096bit parameters on a different server with a more recent dovecot version and copied the /var/lib/dovecot/ssl-parameters.dat to my Debian server but then dovecot stops working (log message about corrupt ssl-parameters.dat).
(((o(ﾟ▽ﾟ)o))) If privacy is outlawed, only outlaws will have privacy. (((o(ﾟ▽ﾟ)o)))
ヽ(`Д´)ﾉ Everyone should run Tor on their idle servers.