Comment by bigiain

Question: where's your IP address come from? I'd have guessed that common cloud VM IP pools are likely all trashed permanently already? I somehow doubt AWS or DO or Linode or Rackspace et al are worthwhile places to host an outbound mail server? I'd also guess ISP pools of home IP addresses are probably just as poisoned. Is proper SPF/DKIM setup "enough" to overcome that? (Or are my suspicions about pools of IP addresses unfounded?)