What kind of filtering does Chirp do on incoming emails?
When receiving and relaying emails we do not read, scan or otherwise take into account the contents of those emails. We do, however, subscribe to dns block lists and reject emails originating from known spam servers. We also monitor for warnings/errors in the server mail logs and the IP addresses of repeat offenders can be blocked automatically for periods of up to 24 hours. After emails have passed through our server, the contents will often be scanned by your ISP and blocked if they contain spam- or virus-content or by other metrics, and finally, your local mail program will often perform it’s own virus-checking and apply spam filters.