hostname is optional in RELAY BACKUP, uses env->sc_hostname if not
specified
update doc and grammar.
hostname directive no longer exists, relay backup host is optional
use the first two bytes of a message id for the bucket
Merge branch 'relay-backup'
pass envelopes in ascii form in imsg to reduce the amount of
memory used for imsg buffers
Merge branch 'master' of ssh.poolp.org:/git/opensmtpd
remove struct userinfo from envelopes
disable ascii envelope passing for now, a regression is investigated.
Merge branch 'master' into rm-userinfo
bogus free
close the message file on RSET. plug a potential fd leak when the session
is reused.
Merge branch 'master' into portable