We've been getting increasing amounts of bounces and dropped mail for haskell.org emails (things sent hackage trustees, things sent from our wiki and hackage servers, etc). We _mainly_ have kept things working, but it looks like policies have been amped up in terms of requiring various measures. Additionally, there's something about reverse dns and valid hostnames that seems to not be configured correctly, according to mxtoolbox. Along with all that, we'd really like to migrate the mail infrastructure to our new packet servers, away from rackspace. As such, we could use some concentrated help from someone familiar with maintaining and administering postfix servers, if someone is up to volunteer for the task. Thanks! --Gershom