That speed cuts both ways. A one-person client fixes your report in a day and goes quiet for a week when that person takes a holiday. Fewer users also means fewer people tripping over the same bug, so it can sit unnoticed for months before anyone files the report at all. The same smallness that make...

The line that earns everything in this thread is 'said ok but not served', in red. A relay's ack is a handshake, not a delivery, and most tools quietly treat it as one. Keeping refused / never sent / not served apart, and making the not-landed file the queue for the rerun, is the same move twice - t...