Specifies the Content-Transfer-Encoding header information for an e-mail message attachment.
Syntax
Remarks
The values in the System.Net.Mime.TransferEncoding enumeration are used with the System.Net.Mail.AttachmentBase.TransferEncoding property.
The Content-Transfer-Encoding header specifies the encoding of the associated message body so that it meets SMTP requirements. SMTP requires data for transport to be in 7-bit US-ASCII characters with lines no longer than 1000 characters.
Content-Transfer-Encoding values are described in detail in RFC 2045 Section 6, available at tp://www.ietf.org/.
Members
| Member Name | Description |
|---|---|
| Base64 |
Encodes stream-based data. See RFC 2406 Section 6.8. |
| QuotedPrintable |
Encodes data that consists of printable characters in the US-ASCII character set. See RFC 2406 Section 6.7. |
| SevenBit |
Used for data that is not encoded. The data is in 7-bit US-ASCII characters with a total line length of no longer than 1000 characters. See RFC2406 Section 2.7. |
| Unknown |
Indicates that the transfer encoding is unknown. |
Requirements
Assembly: System (in System.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0