一位名叫 Sue Mosher 的人在 microsoft.public.office.developer.outlook.vba.

A person named Sue Mosher wrote up a pretty summary on this issue in microsoft.public.office.developer.outlook.vba.

简而言之，它可以归结为以下任一情况:

In short, it boils down to either of this:

• 使用 MailItem.SentOnBehalfOfName，它只适用于 Exchange 环境(我想你就是这种情况) - 当用户对另一个 Exchange 邮箱具有发送为"权限时，这很漂亮与切换帐户大致相同.
• 使用一个小技巧，包括摆弄CommandBars
• 使用 Outlook 兑换
• (在 OL2007 中，您将拥有 MailItem.SendUsingAccount)

• use MailItem.SentOnBehalfOfName, which only works in Exchange enviromnents (I suppose that is the case for you) - when the user has "Send As" permissions for the other Exchange mailbox, this is pretty much the same thing as switching accounts.
• use a small hack that involves fiddling with the CommandBars
• use Outlook Redemption
• (in OL2007, you would have MailItem.SendUsingAccount)