| :-------------- | :-------------------------------- |
| **Deliver-To:** | Defines actual delivery recipient of message. Can be used for personalized statistics and for user specific options. |
| **IP:** | Defines IP from which this message is received. |
-| **Helo:** | Defines SMTP |
-| **Hostname:** | Defines resolved |
-| **From:** | Defines SMTP mail from command |
+| **Helo:** | Defines SMTP helo |
+| **Hostname:** | Defines resolved hostname |
+| **From:** | Defines SMTP mail from command data |
| **Queue-Id:** | Defines SMTP queue id for message (can be used instead of message id in logging). |
-| **Rcpt:** | Defines SMTP recipient (it may be several `Rcpt` |
+| **Rcpt:** | Defines SMTP recipient (there may be several `Rcpt` headers) |
| **Pass:** | If this header has `all` value, all filters would be checked for this message. |
| **Subject:** | Defines subject of message (is used for non-mime messages). |
| **User:** | Defines SMTP user. |