> The real problems come when you try to use the SMTP gateway. It's quite slow and unreliable and doesn't really work for parallel workloads. Ah, that's helpfu

> The real problems come when you try to use the SMTP gateway. It's quite slow and unreliable and doesn't really work for parallel workloads. Ah, that's helpful to know. I would normally have wanted to use the SMTP gateway as a more portable API, to avoid tying things to Amazon-specific APIs. But it sounds like doing so would add substantial fragility.