22.214.171.124 PidLidInternetAccountName Property
Type: PtypString ([MS-OXCDATA] section 2.11.1)
The PidLidInternetAccountName property ([MS-OXPROPS] section 2.152) specifies the user-visible e-mail account name through which the e-mail message is sent. The format of this string is implementation-dependent. This property can be used by the client to determine which server to direct the mail to but is optional and the value has no meaning to the server.