rc script REQUIRE-ing a service on another host

We had a power failure last night, and this morning I found that imapproxyd (running on a webserver which provides webmail) had failed to start because it depends on imapd (running on the mailserver, a different host), and imapproxyd had won the startup race. I need to prevent the race by

RE: rc script REQUIRE-ing a service on another host

Jonathan McKeown: We had a power failure last night, and this morning I found that imapproxyd (running on a webserver which provides webmail) had failed to start because it depends on imapd (running on the mailserver, a different host), and imapproxyd had won the startup race. I need