All,

My company owns multiple domain names/sub companies. Lately, uses have been coming up to me and asking if they can send as the seconadary domain name. For example my primary domain is @mycompany.com but user wants to send an email in the blackberry and send as @abcd.com. Is that possible?

mails send thru your BES will be send with your primary email address.
what you could do is add a BIS connection to the device to use the other domain names.

if your provider can offer you both BIS and BES services on your sim that is...

I have the exact same requirement (me personally) ... I use BES for 1 address and BIS integration for the other.

yup.. same here. im using BES for my official mail but BIS on the other.. it works great for me.. .