Incoming email policy

From OpenVZ Linux Containers Wiki

We @openvz.org reject emails

• coming from a server which does not understand "temporary failure" SMTP codes (i.e. not RFC-conformant)
• coming from non-existent senders (i.e., back sender validity verification is performed)
• listed in some RDNSBL lists (see below)

[edit] dnsbl

We use the following realtime DNS blacklists:

• bl.spamcop.net (see http://www.spamcop.net/)
• sbl.spamhaus.org (see http://www.spamhaus.org/)
• cbl.abuseat.org (http://www.cbl.abuseat.org/)

If your mail server address is in that lists, your mails will be rejected.