anthrax is our mail server. It is used for sending and receiving all OCF mail, excluding staff use of Google Apps. Mail sent by users, websites, virtual hosts, or basically anything else goes through here.

Received mail to is forwarded to the address in the mail attribute of the LDAP account entry (or the aliases table) or rejected; nothing is stored.

Received virtual host mail is forwarded to the address stored in a MySQL table. Outgoing virtual host mail is also via anthrax, which uses SMTP authentication (passwords checked against crypt(3)'d passwords in a MySQL table). There's a whole page with more details about vhost mail.

Mail originating anywhere inside the OCF relays through anthrax.

External relations

We maintain relations with external groups for two reasons.

  1. To monitor our mail server reputation and prevent outgoing mail from being blocked by external service providers.
  2. To monitor abuse and disable compromised accounts.

When our IP addresses change, we need to update our registrations.

We have feedback loops with

  • AOL (out-of-date)
  • Comcast (out-of-date)
  • Cox (out-of-date)
  • FastMail (out-of-date)
  • Microsoft (Junk Email Reporting Agreement, 2013-03-06) (out-of-date)
  • Rackspace (out-of-date)
  • RoadRunner (out-of-date)
  • Yahoo (out-of-date)

We are whitelisted by

  • AOL (out-of-date)
  • DNSWL (out-of-date)
  • Verizon (out-of-date)

We are also registered with

  • SpamCop (ISP account set to receive summary reports)