Default constructor.

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public MailFromAsyncOP( string from, long messageSize, SMTP_DSN_Ret ret, string envid )
Public Sub New ( from As String, messageSize As Long, ret As SMTP_DSN_Ret, envid As String )
public: MailFromAsyncOP( String^ from, long long messageSize, SMTP_DSN_Ret ret, String^ envid )
new : from : string * messageSize : int64 * ret : SMTP_DSN_Ret * envid : string -> MailFromAsyncOP

- from (String)
- Sender email address. Value null means no sender info.
- messageSize (Int64)
- Message size in bytes. Value -1 means that message size unknown.
- ret (SMTP_DSN_Ret)
- Delivery satus notification(DSN) RET value. For more info see RFC 3461.
- envid (String)
- Delivery satus notification(DSN) ENVID value. Value null means not specified. For more info see RFC 3461.

Before using ret or envid arguments, check that remote server supports(SMTP_Client.EsmtpFeatures) SMTP DSN extention.
Assembly: LumiSoft.Net (Module: LumiSoft.Net.dll) Version: 4.5.5510.19119