SmtpClientGetSizeAsync Method

protected virtual Task<long> GetSizeAsync(
	FormatOptions options,
	MimeMessage message,
	CancellationToken cancellationToken
)

Parameters

options  FormatOptions

The formatting options.

message  MimeMessage

The message.

cancellationToken  CancellationToken

The cancellation token.

Return Value

Asynchronously calculates the size of the message in bytes.

This method is called by SendAsync methods in the following conditions:

• The SMTP server supports the SIZE= parameter in the MAIL FROM command.
• The ITransferProgress parameter is non-null.
• The SMTP server supports the CHUNKING extension.

Reference