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Editorial Team
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Asked: 2026-05-18T20:13:38+00:00

I’ve just read about how WCF can send reliable messages and I wanted to

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I’ve just read about how WCF can send reliable messages and I wanted to check something.

If the WCF service is set to use Reliable Messaging and a client requested some data from a service. If the client had been hacked to keep saying this data not received would the WCF service keep resending the data indefinitely? Could this be used to affect the stability of the server and is it a risk?

Are there security measures which should be put in place if the WCF service is public?

I suppose it’s not much worse than clients clicking refresh on a webpage. But is there anything else which should be considered?

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1 Answer

  1. Editorial Team

    There is a MaxRetryCount property:

    This value, which defaults to 8
    (minimum 1, maximum 20), specifies how
    many times the infrastructure shall
    retry to resend a message in case of a
    transmission failure. Once a message
    has been unsuccessfully resent for the
    configured number of retries, the
    failure is considered to be
    unrecoverable and causes the channel
    to fault.

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