You can also set a rule in Lotus to forward all of your Lotus e-mail to your carrier.blackberry.net address, being sure to set your reply-to address in BIS to your corporate e-mail address (if you are running BIS 2.0). This will allow you to receive, send, and reply to your corporate e-mail using your carrier.blackberry.net address, but when the e-mails come through it will look like it is coming from your Lotus account.