Received |
public enum ReceivedClauseId
| Member name | Value | Description |
|---|---|---|
| None | 0 | Represents any comments that appear before the first keyword in the Received header value. |
| From | 1 | Represents the "from" clause which identifies the name of the sending host. |
| By | 2 | Represents the "by" clause which identifies the name of the receiving host. |
| Via | 3 | Represents the "via" clause which identifies the physical link or protocol used. |
| With | 4 | Represents the "with" clause which identifies the mail protocol used (e.g., SMTP, ESMTP, etc.). |
| Id | 5 | Represents the "id" clause which identifies a unique identifier for the message. |
| For | 6 | Represents the "for" clause which identifies the recipient address. |
| Unknown | 7 | Represents an unknown clause which could not be identified. |
A typical Received header contains several clauses that provide information about the message transfer, including:
For more information, see section 4.4 of RFC 5321.