A semi-fresh OS X mac mini Server install.
Turn on 10.8.5 Mail services.
com.apple.launchd[1]: (org.dovecot.dovecotd) Throttling respawn: Will start in 10 seconds
com.apple.launchd[1]: (org.dovecot.dovecotd) Throttling respawn: Will start in 10 seconds
com.apple.launchd[1]: (org.dovecot.dovecotd) Throttling respawn: Will start in 10 seconds
over, and over, and over, and over again.
Then Mail service shuts off.
Rinse - Lather - Repeat
And why again is there no WebMail in 10.8 Server? I guess in the above case, it is not needed since the Mail Server is borked.