The Minger Email Address Verification Protocol

popowich

EQ Forum Admin
Staff member
It is common for elements within a typical email handling topology
to be unaware of whether individual local-parts are valid for the
mail it accepts. For example, so-called "edge" servers which provide
security oriented services for downstream mail handling elements
often do not have an exhaustive listing of all valid local-parts for
a given domain. Thus, they are sometimes forced to accept and process
messages which might otherwise be rejected as "user unknown".
Similarly, entities offering "backup MX" mail services are rarely
privy to a complete local-part listing and are therefore often decide
to accept messages which might otherwise be rejected. Finally, even
within a common administrative framework of several locally maintained
and controlled SMTP servers in a load balanced configuration, it is
not always possible for all servers to access a common local-part
database.

For information see this link :

draft-hathcock-minger-05 - The Minger Email Address Verification Protocol
 
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