TransportErrorSeverity

smtp_client

Enum TransportErrorSeverity 

Source 
pub enum TransportErrorSeverity {
    Local,
    NetworkTransient,
    MailTransient,
    MailboxTransient,
    MailSystemTransient,
    MailPermanent,
    MailboxPermanent,
    MailSystemPermanent,
}

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Local

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NetworkTransient

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MailTransient

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MailboxTransient

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MailSystemTransient

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MailPermanent

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MailboxPermanent

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MailSystemPermanent

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