Knowledge base
Stop delivery to a target — or to everythingimportantWritten by the HubAPI endpointHolds mail back without failing it — for one domain, one address, one tag, or for the whole cluster when the target is left out.Named groups of sending addressesimportantWritten by the HubAPI endpointCreates and lists the address pools that a message can ask for by name.The do-not-send listimportantWritten by the HubAPI endpointAddresses and domains the engine refuses to send to, each with the code and text it answers with.Fail mail on purpose, before it is sentAPI endpointMakes the engine answer chosen mail with a chosen SMTP error instead of delivering it.Addresses that belong to us but live elsewhereAPI endpointThe register of sending addresses reached through another machine — a NAT or a proxy — rather than bound locally.Hand a message to the engine over HTTPWritten by the HubAPI endpointThe HTTP door into the sending queue: the body is a delivery job, the same JSON that would be published to the broker.Which addresses belong to which poolAPI endpointLists pool membership; every write form we tried was refused, and the console uses its own path for this.