ARC verification and signing for automated senders

[almereyda]

Now that Modoboa has the send-only flag for email accounts, we have a facility to identify automated senders. This is useful for providing ARC signing to those identities, which are used by systems that do not bring their own ARC signing facility. This is needed to deliver messages from automated senders into Google (and possibly others).

• Email sender guidelines - Google Workspace Admin Help

Rspamd has a module for verification and generation of ARC signatures.

• ARC module

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Therefore it appears useful to add support for the requirement that

• the Modoboa rspamd plugin has support for configuring verification and generation of ARC signatures.