Hi, I have a platform with > 100K domains to sing email messages for outbound delivery.
Question is : will opendkim grab all the domains/keys/certs to load into memory during the initial start up of the program OR it will fetch appropriate keys/certs for a domain during a signing process only.
I am afraid of a very long start up time for opendkim milter if it tries to read all > 100K domain/keys/certs data.