@girish I just wanted to add another reason why we need better spam control exposed to admins... I just had a client who had their home IP address blacklisted by Spamhaus in their PBL because of the range of IP it was found in, even though they were not spamming at all (since the PBL blocks IP ranges). I have asked for it to be delisted but it'd be awesome if in the future I could just whitelist the IP address or something like that to quickly resolve it for them.
Update: Just found https://cloudron.io/documentation/email/#blacklist-domains-and-ips which is for blacklisting but I extrapolated from that and found the related whitelist files too, so used that. This needs to be added to the docs. I will see if I can submit that change in the git for you guys. 🙂 With that said though, it'd still be nice to see this exposed in the UI so if an admin is on the road / unable to SSH to the server, it can be easily whitelisted still.