PMDF System Manager's Guide


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2.3.4.35 Sending an SMTP VRFY Command (domainvrfy, localvrfy, novrfy)

These keywords control PMDF's use of the VRFY command in its SMTP client. Under normal circumstances there is no reason for PMDF to issue a VRFY command as part of an SMTP dialogue --- the SMTP MAIL TO command should perform the same function that VRFY does and return an appropriate error. However, SMTP servers exist that will accept any address in a MAIL TO (and bounce it later), whereas they perform more extensive checking as part of a VRFY command.

Therefore PMDF can be configured to issue SMTP VRFY commands. The keyword domainvrfy causes PMDF to issue a VRFY command with a full address (e.g., user@host) as its argument. The localvrfy keyword causes PMDF to issue a VRFY command with just the local part of the address (e.g., user). novrfy is the default.


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