Using MailSite Express and POP yields an error in MailSite Express An error in MailSite Express will occur, if a user is logged into MailSite Express and then uses POP3 to download all the messages off the server. MailSite Express uses IMAP to view, flagged as read etc. An IMAP connection keeps the messages on the server until it's given a command to purge deleted messages.

If a user POPS the messages while a MailSite Express session is open, an error similar to the following may occur when clicking on a message:

Microsoft VBScript runtime (0x800A01A8) Object required: 'objXMLEnvelopes'