3 ms·

In cost? Running postfix.org mail sever on a VM must have a nonzero cost, with the additional need to maintain the underlying OS.

• caymanjim 5y ago
  EC2 micro instances are free.
  • beagle3 5y ago
    but are often blacklisted as SMTP sources, unfortunately.
    • joana035 5y ago
      Not really, only if it the IP was used to delivery spam. But IP reputation can be established with a bit of warm up and human interaction.