26CHAPTER 2: CONFIGURING MAIL DELIVERY
double bounce message with a copy of the entire single bounce message.
■ Delay — Inform the postmaster of delayed mail. In this case, the postmaster receives message headers only.
■ Policy — Inform the postmaster of client requests that were rejected
| because of unsolicited mail policy restrictions. The postmaster will |
| receive a transcript of the entire SMTP session. |
| ■ Protocol — Inform the postmaster of protocol errors (client or server), |
| or attempts by a client to execute unimplemented commands. The |
| postmaster will receive a transcript of the entire SMTP session. |
| ■ Double Bounce — Send double bounces to the postmaster. |
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Mail Mappings | Mail Mappings are used to map an external address to a different internal |
| address and vice versa. This is useful for hiding internal mail server |
| addresses from external users. |
| For mail originating externally, the mail mapping translates the address in |
| the To: and CC: mail header field into a corresponding internal address to |
| be delivered to a specific internal mailbox. |
| For example, mail addressed to user@example.com can be redirected to |
| the internal mail address user@sales.example.com. This enables the |
| message to be delivered to the user's preferred mailbox. |
| Similarly, mail originating internally will have the address in the From:, |
| |
| to have come from the preferred external form of the mail address, |
| user@example.com. |
| Select Mail Delivery |
