pub enum AddRecipientFailure {
    TerminateSession,
    RejectedPermanently,
    RejectedTemporarily,
    Moved(SmtpPath),
    InvalidRecipient,
    StorageExhaustedPermanently,
    StorageExhaustedTemporarily,
    FailedTemporarily,
    InvalidParameter,
    InvalidParameterValue,
}

Variants

TerminateSession

The whole mail transaction failed, subsequent RCPT and DATA will fail 421 Service not available, closing transmission channel (This may be a reply to any command if the service knows it must shut down)

RejectedPermanently

550 Requested action not taken: mailbox unavailable (e.g., mailbox not found, no access, or command rejected for policy reasons)

RejectedTemporarily

450 Requested mail action not taken: mailbox unavailable (e.g., mailbox busy or temporarily blocked for policy reasons)

Moved(SmtpPath)

551 User not local; please try (See Section 3.4)

InvalidRecipient

553 Requested action not taken: mailbox name not allowed (e.g., mailbox syntax incorrect)

StorageExhaustedPermanently

552 Requested mail action aborted: exceeded storage allocation

StorageExhaustedTemporarily

452 Requested action not taken: insufficient system storage

FailedTemporarily

451 Requested action aborted: local error in processing

InvalidParameter

555 MAIL FROM/RCPT TO parameters not recognized or not implemented

InvalidParameterValue

455 Server unable to accommodate parameters

Trait Implementations

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Formats the value using the given formatter. Read more

Auto Trait Implementations

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Immutably dereferences self for inspection.

Calls tap_deref in debug builds, and does nothing in release builds.

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The resulting type after obtaining ownership.

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🔬 This is a nightly-only experimental API. (toowned_clone_into)

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Performs the conversion.

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Performs the conversion.