[imp] horde help needed

[123connect]

hi

not sure if this is the right place to send for help so apologies if I am 
wrong.  anyway can anybody help with my problem:

we have two servers, both freeBSD, running horde and we are transferring 
domains from one to the other as the first had some problems.  one of the 
domains needs to get his old email contact list from server1 so he can put 
it on server2.  our tech says it is not a good idea to copy the files 
across as they may cause a problem on the new server so what I need to know is:

can you access the webmail or email on server one while the site and dns 
point to server2 (ie can you access horde from an ip address?)
if anyone has a suggestion we are all ears

thank you for your time, not sure how this gets replied to so can you email 
info at 123connect.co.uk

many thanks for your time and hopefully your solution

regards

jeff