Will adding Spambrella in front of Microsoft 365 or Google Workspace slow down email delivery?

No – in practice, the opposite is often true. Spambrella filters at the network edge before messages reach Microsoft or Google infrastructure, reducing the volume of mail those systems have to process. Legitimate email delivery latency introduced by Spambrella’s inspection layer is measured in milliseconds and is imperceptible to users. Because Spambrella is a 100% cloud-based service with no on-premise hardware, there is no bottleneck introduced into your existing mail flow architecture.