"store and forward" is a colloguial synonym for the SMTP-techy "relay".Pay attention to Len on this subject. There's a lot of confusion going on in this thread due to the lack of differentiation between 'store and forward' and 'outbound relay'.
In fact, the "inbound/outbound" is a not-very-useful and often confusing qualification. Imail (and IMGate) don't have any concept of "in" or "out", that's purely for us humans.
SMTP relays only have policies to apply and @recipient.domains to resolve using various lookups (localdomain, relay domain, else DNS )
Imail (and IMGate) "SMTPD server" does the "store (in the queue)" function applying various policies to incoming mail.
And Imail (and IMGate) "SMTP client" does the "forward", "relay", of a msg to a non-local, remote @recipient.domain (applying no policies).
"relay" means "delivering a msg to a @recipient.domain that is not local" to the SMTP box doing the relaying.
Strictly speaking, "relay" and "store/forward" have no sense of "in" or "out".
Len
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