MailWeaver Postbox Mock

Always accept Return HTTP 200 and a Postbox MessageId for every valid SendEmail request.

400 BadRequestException Invalid parameters or request headers.

400 sender not verified Sender identity is not verified in Postbox.

400 MessageRejected Provider rejected the message during SendEmail.

400 SendingPausedException Sending is temporarily paused for the account.

400 AccountSuspendedException The service account is permanently restricted.

429 TooManyRequestsException Postbox throttling / request rate limit.

400 LimitExceededException Postbox account or message limit was exceeded.

404 NotFoundException A referenced Postbox resource was not found.

503 ServiceUnavailableException Temporary provider-side outage.

Every 5th request -> 429 Add a periodic throttling rule while keeping the default response successful.