Enum AuthoredEmailRefusalReason

Namespace

MailFathom.Application.Mail.Delivery.Composition

Assembly

MailFathom.Application.dll

States what stopped a message from being composed.

public enum AuthoredEmailRefusalReason

Fields

BoundExceeded = 4

The message exceeds a bound the deployment configured or the submission server advertised.

FieldUnusable = 2

An author-supplied field carries a value no message can be composed from, such as an address naming no mailbox.

HeaderInjected = 1

An author-supplied field carries a line break, which would smuggle a header nobody wrote.

InternationalizationUnsupported = 3

An address outside ASCII was addressed to a server that carries none.

SenderUnconfigured = 0

The sending account configures no address to send from.

Remarks

Composing is decided entirely from what the author wrote, the account's configuration, and what the submission server advertised, so every way it can end badly is one of these — which is what lets a caller act on the answer rather than translate an exception. A failure this does not name is a defect: a composer that cannot build a message it accepted has a fault of its own and raises rather than refuses.