当用cdo.message发送电子邮件时，指定我自己的消息id头

是否有一种方法可以指定我自己的消息id与CDO ?

使用下面的配置，message-id仍然由cdo组件生成，并且忽略我指定的那个。

<%
Const cdoSendUsingPort = 2
Dim iMsg, iConf, Flds
Set iMsg = CreateObject("CDO.Message")
Set iConf = CreateObject("CDO.Configuration")
Set Flds = iConf.Fields
' set the CDOSYS configuration fields to use port 25 on the SMTP server
With Flds
    .Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = cdoSendUsingPort
    .Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "smtp@example.com"
    .Item("urn:schemas:mailheader:message-id") = "0123456789.0123456789@example.com"
.Update
End With
With iMsg
    Set .Configuration = iConf
    .From = "from@example.com"
    .Subject = "test"
    .To = "to@example.com"
    .HTMLBody = "test"
    .Send
End With
Set iMsg = Nothing
Set iConf = Nothing
Set Flds = Nothing
%>

~~配置对象iConf与消息对象iMsg无关，你不需要创建它~~

~~所以，去掉Set iConf = CreateObject("CDO.Configuration")，用Set Flds = iMsg.Fields代替Set Flds = iConf.Fields。~~

您需要使用iMsg.Fields来设置消息的标题。

设置消息头字段

Dim iMsg, iConf, Flds
Set iMsg = CreateObject("CDO.Message")
Set Flds = iMsg.Fields
Set iConf = CreateObject("CDO.Configuration")
Set Flds = iConf.Fields
' set the CDOSYS configuration fields to use port 25 on the SMTP server
With Flds
    .Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = cdoSendUsingPort
    .Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "smtp.example.com"
    .Update
End With
With iMsg.Fields
    .Item("urn:schemas:mailheader:message-id") = "0123456789.0123456789@example.com"
    .Update
End With
With iMsg
    Set .Configuration = iConf
    .From = "from@example.com"
    .Subject = "test"
    .To = "to@example.com"
    .HTMLBody = "test"
    .Send
End With

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