OptionalprobabilityProbability [0, 1] that a send fails. Defaults to 1, or to 0 when
attempts is given (scripted failures only).
Optionalattempts1-based send attempts that always fail (deterministic script), e.g. [1, 3].
OptionalerrorsFailure kinds/factories used in order, cycling (1st failure → errors[0],
2nd → errors[1], …). Default ['rate-limited'].
OptionalretryretryAfterMs carried by 'rate-limited' failures. Default 1000.
OptionalmaxLongest streak of probabilistic failures before a send is forced through
(keeps failures transient). Default Infinity.
Transient outbound failures.