C#中利用Lotus notes公共邮箱发送邮件的方法

2019-12-30 19:37:58丽君

前言

公司的邮件系统用的是反人类的 Lotus notes, 你敢信?

最近要实现一个功能,邮件提醒功能,就是通过自动发送提醒邮件

 前前后后这个问题搞了2天,由于公司的诸多条件限制,无法直接调用到公司发送邮件的接口,只有通过类似 Lotus script,VBA 等其他方式来实现。

用VBA代码实现发送邮件,其实我在n年前就实现过了

代码如下,网上一搜也一大堆


Function SendEmailbyNotesWithAttachement_2(Addresses, Attach, cc)
 strSubject = ThisWorkbook.Sheets("EMAIL").Range("B1")
 strbody = ThisWorkbook.Sheets("EMAIL").Range("A1")
 'Declare Variables
  Dim s As Object
  Dim db As Object
  Dim body As Object
  Dim bodyChild As Object
  Dim header As Object
  Dim stream As Object
  Dim host As String
  Dim message As Object
  ' Notes variables
  Set s = CreateObject("Notes.NotesSession")
  Set db = s.CURRENTDATABASE
  Set stream = s.CreateStream
  ' Turn off auto conversion to rtf
  s.ConvertMIME = False
  ' Create message
  Set message = db.CREATEDOCUMENT
  message.Form = "memo"
  message.Subject = strSubject
  message.sendTo = Split(Addresses, ";")
  message.CopyTo = cc
  message.SaveMessageOnSend = True
  ' Create the body to hold HTML and attachment
  Set body = message.CreateMIMEEntity
 'Child mime entity which is going to contain the HTML which we put in the stream
  Set bodyChild = body.CreateChildEntity()
  Call stream.WriteText(strbody)
  Call bodyChild.SetContentFromText(stream, "text/HTML;charset=UTF-8", ENC_NONE)
  Call stream.Close
  Call stream.Truncate
  ' This will run though an array of attachment paths and add them to the email
  For i = 0 To UBound(Attach)
  strAttach = Attach(i)
  If Len(strAttach) > 0 And Len(Dir(strAttach)) > 0 Then
   ' Get the attachment file name
   pos = InStrRev(strAttach, "")
   Filename = Right(strAttach, Len(strAttach) - pos)
   'A new child mime entity to hold a file attachment
   Set bodyChild = body.CreateChildEntity()
   Set header = bodyChild.CreateHeader("Content-Type")
   Call header.SetHeaderVal("multipart/mixed")
   Set header = bodyChild.CreateHeader("Content-Disposition")
   Call header.SetHeaderVal("attachment; filename=" & Filename)
 
   Set header = bodyChild.CreateHeader("Content-ID")
   Call header.SetHeaderVal(Filename)
  
   Set stream = s.CreateStream()
   If Not stream.Open(strAttach, "binary") Then
    MsgBox "Open failed"
   End If
   If stream.Bytes = 0 Then
    MsgBox "File has no content"
   End If
   Call bodyChild.SetContentFromBytes(stream, "application/octet-stream", ENC_IDENTITY_BINARY) ' All my attachments are excel this would need changing depensding on your attachments.
  End If
  Next
  'Send the email
  Call message.Send(False) 
  s.ConvertMIME = True ' Restore conversion
End Function
 VBA