Thanks a lot, Bron and Conrad! Things are on the way to work much better, now. OpenIO's libraries exported some functions whose name collided with other exported by cyrus. For the current case, it comes from "message_get_field()". Once patched, it worked as expected.
I am currently fixing this (OpenIO SDS lacks prefixes and naming conventions), so we will be ready for an iteration further. I'll ping the list as soon as it's done. Warm regards, Jean-François SMIGIELSKI<mailto:jean-francois.smigiel...@openio.io> OpenIO, Co-founder + R&D Manager +33.625135563