The title says it all. The pacman output asks me to migrate to the new configuration with separate daemons:

[2011-06-29 17:41] Please migrate to the new daemon format:
[2011-06-29 17:41] /etc/rc.d/courier-imap has been split into separate daemons:
[2011-06-29 17:41] imapd, imads-ssl, pop3d, pop3d-ssl
[2011-06-29 17:41] This elimates the need for /etc/conf.d/courier-imap
[2011-06-29 17:41] Update your /etc/rc.conf and manually add the desired daemons. Make sure
[2011-06-29 17:41] you first start authdaemond before any other of these daemons.
[2011-06-29 17:41] Example prior to this change:
[2011-06-29 17:41] DAEMONS=( ... courier-mta ...)
[2011-06-29 17:41] Example after this change:
[2011-06-29 17:41] DAEMONS=( ... authdaemond esmtpd esmtpd-ssl imapd imapd-ssl
[2011-06-29 17:41] pop3d pop3d-ssl webmaild ... )
[2011-06-29 17:41] This allows better control over the daemons and will generate
[2011-06-29 17:41] correct entries in /run/daemons
[2011-06-29 17:41] An old configuration will keep working but please do migrate in time
[2011-06-29 17:41] as support for this will be removed some time in 2012.

However, there is no esmtpd and esmtpd-ssl in /etc/rc.conf.