We probably need to wrap the [productsign call](https://github.com/mozilla-releng/scriptworker-scripts/blob/77601ac1cba523488d8c00c833484b296b7bb439/iscript/src/iscript/mac.py#L1043-L1064) in a `retry_async`.
Bug 1751808 Comment 1 Edit History
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We probably need to wrap the [productsign call](https://github.com/mozilla-releng/scriptworker-scripts/blob/77601ac1cba523488d8c00c833484b296b7bb439/iscript/src/iscript/mac.py#L1043-L1064) in a `retry_async` since it looks like we may be hitting an external network resource (timestamp server).