Outlook VBA 如何返回当前发送邮件的EntryID

事情是这样的，我用vba做了自动发邮件的宏，但是公司要求附件和密码必需分开发，所以我需要先让vba发一封带附件的邮件，然后再回复一下我发的邮件，再发一次密码，那么问题来了：

1. 是不是只有EntryID能准确的定位到我发的邮件？
2. 如何返回我发出去的邮件的EntryID?
   需要提前说明的是，发邮件用的是公司邮箱，同一时间内会有大量相同题目的邮件发出去，所以用题目或者时间来搜索已发邮件的方法是不可取的。只能用EntryID这种唯一值来定位邮件。

可以考虑 Message Id
Entry Id 例如 把一封邮件由转移资料夹，Entry Id 会是转的

Each Outlook item has a field called EntryID, which is a unique ID field generated by the messaging storage system for use with the MAPI folders that store the item. It's important to note that whenever an item is created in a folder, it is assigned a new EntryID. This means that the EntryID field changes if an item is moved to a different folder or if an item is exported and then imported (even to the same folder).