使用System.Net.Mail.MailAddress或其他库指定.eml文件名

Question

我需要在要求时提交电子邮件。

我的代码有效：

• 发送电子邮件
• 请求时提交电子邮件
• 但不允许我指定文件名（使用guid作为文件名）
• 示例：c：\ Archive \ email \ 1003d05d-11ca-45e2-a5f4-cf2da29c39d9.eml

潜在解决方案：

1. 将文件保存到临时文件夹，重命名文件，然后复制到最终目的地
2. 使用其他方法保存文件，提高性能

优点和缺点

• 解决方案1：丑陋且性能不佳

问题

是否有人知道如何向＆＃34; MySpecifiedFileName.eml＆＃34;提交电子邮件，而无需重命名然后复制？

现有代码：

Public Shared Sub Send(ByVal EmailFrom As String, ByVal EmailTo As String, ByVal Subject As String, ByVal HTMLBody As String, Optional SaveToFile As Boolean = False, Optional SaveFilepath As String = "")
    Dim MyMsg As MailMessage = New MailMessage

    Dim Recipients() As String
    Recipients = Split(EmailTo, ";")

    With MyMsg
        .From = New System.Net.Mail.MailAddress(EmailFrom)
        For i = 0 To Recipients.Count - 1
            If Recipients(i).ToString <> "" Then
                .To.Add(New System.Net.Mail.MailAddress(Recipients(i)))
            End If
        Next
        .Sender = New System.Net.Mail.MailAddress(EmailFrom)
        .Subject = Subject
        .Body = HTMLBody
        .BodyEncoding = System.Text.Encoding.UTF8
        .IsBodyHtml = True
        .Priority = MailPriority.High            
    End With

    Dim SmtpServer As New SmtpClient(My.Settings("SMTPServer"))
    SmtpServer.Send(MyMsg)

    REM
    REM Save Email when requested
    REM
    If SaveToFile = True Then
        Dim client As New SmtpClient(My.Settings("SMTPServer"))
        client.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory
        client.PickupDirectoryLocation = SaveFilepath
        client.Send(MyMsg)
        client = Nothing
    End If
    MyMsg = Nothing
    SmtpServer = Nothing
End Sub

Answer 1

CodeProject.com上的Allan Eagle创建了一个extension of the System.Net.Mail.MailMessage class，其中包含使用特定文件名保存电子邮件的功能。我相信这会解决你提出的问题。