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SmtpDeliveryFormat Enumeration

.NET Framework 4.6 and 4.5

The delivery format to use for sending outgoing e-mail using the Simple Mail Transport Protocol (SMTP).

Namespace:  System.Net.Mail
Assembly:  System (in System.dll)

public enum SmtpDeliveryFormat

Member nameDescription
InternationalA delivery format where non-ASCII characters in the envelope and header fields used in the Simple Mail Transport Protocol (SMTP) for mail messages are encoded with UTF-8 characters. The extensions to support international e-mail are defined in IETF RFC 6530, 6531, and 6532.
SevenBitA delivery format using 7-bit ASCII. The traditional delivery format used in the Simple Mail Transport Protocol (SMTP) for mail messages.

.NET Framework

Supported in: 4.6, 4.5
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